---
title: "Anthem BCBS Colorado ABA coverage: the intake guide."
url: "https://carelu.com/payers/anthem-bcbs-colorado"
markdown_url: "https://carelu.com/payers/anthem-bcbs-colorado.md"
state: CO (Colorado)
payer: Anthem BCBS Colorado
kind: Commercial insurance
description: "How Anthem Blue Cross and Blue Shield covers ABA in Colorado: who actually reviews the authorization, the March 2026 weekly-unit change, Colorado's uncapped autism mandate under C.R.S. § 10-16-104(1.4), the 2028 behavior-analyst license, and what intake must verify."
last_reviewed: October 2026
---

# Anthem BCBS Colorado ABA coverage: the intake guide.

_Payer Guide · Anthem BCBS · Colorado · Last updated October 2026 · 14 primary sources_

> Anthem reviews ABA in-house (not Carelon); weekly approved units since 3/1/2026; no mandate caps.

Anthem in Colorado is Rocky Mountain Hospital and Medical Service, Inc., with HMO products underwritten by HMO Colorado, Inc. Three things make Colorado different from the rest of Anthem's footprint, and all three are worth knowing before the first authorization goes out: Anthem publishes a Colorado-specific ABA provider resource guide rather than folding the state into its multi-state one; Colorado's autism mandate lost its dollar caps years ago and never had a small-group carve-out; and since March 1, 2026 Anthem authorizes ABA in weekly approved units, so a claim that exceeds the weekly number gets adjusted even when the total authorization still has room.

As always, plan funding type is the first fact to establish. Colorado's mandate binds health benefit plans issued or renewed in the state; self-funded ERISA plans are outside state insurance law entirely and answer to federal parity instead. Anthem's own Colorado precertification list says as much in its scope note — it applies to local fully-insured members and only to those self-insured (ASO) members whose group purchased the medical-management program.

## Prior authorization and diagnosis at a glance

- **Prior auth for the assessment**: Yes — 97151 sits inside the authorized ABA set; the request goes to Anthem behavioral health via Availity Essentials [5][7]
- **Prior auth for treatment**: Yes — and since March 1, 2026 the authorization is denominated in weekly approved units [7][5]
- **Autism diagnosis required?**: Yes — and Colorado requires the treatment itself to be prescribed or ordered by a licensed physician or licensed psychologist [9][6]

## At a glance

- **Who reviews ABA:** Anthem — behavioral health, 800-424-4014 (not Carelon)
- **Criteria applied:** MCG B-806-T — replaced CG-BEH-02 for ABA on June 1, 2024
- **Submit via:** Availity Essentials → Authorizations and Referrals
- **Authorization unit:** Weekly approved units, effective March 1, 2026
- **State mandate:** C.R.S. § 10-16-104(1.4) (SB 09-244)
- **Mandate caps:** None — the dollar-cap language was struck effective 1/1/2017
- **Exempt from mandate:** Short-term limited duration; individual grandfathered; self-funded ERISA
- **Who may order ABA:** A licensed physician or licensed psychologist must prescribe or order it
- **Licensure:** No Colorado license yet — board created 2026, practice license required 7/1/2028

## Who actually reviews the authorization — and the Carelon trap

Anthem's Colorado precertification list carries an explicit "Responsible party" column, and it spells out how to read it: if Anthem is listed, Anthem reviews; if Carelon Medical Benefits Management is listed, Carelon reviews; if CarelonRx is listed, CarelonRx reviews. The behavioral health row reads "Behavioral Health Services — Inpatient and Outpatient," responsible party Anthem, with the criteria column pointing to a phone number: Behavioral Health at 800-424-4014. The general care-provider precertification line on the same document is 800-832-7850. [5][8]

That matters because the Colorado list is full of Carelon references, and they are the wrong Carelon. Carelon Medical Benefits Management runs Anthem's imaging, genetic testing, cardiology, musculoskeletal, sleep, oncology and rehabilitative-therapy programs — it owns 97150 (group therapeutic procedures) and the PT/OT/speech codes, but not ABA. Carelon Behavioral Health is a different Elevance company; nothing in the current Colorado commercial precertification list assigns it ABA utilization review. Route an ABA request to providerportal.com and it goes to a vendor that does not handle it. [5][8]

Since September 1, 2025 Anthem has asked that behavioral health authorizations be submitted through Availity Essentials — log in, select Authorizations and Referrals, then the Patient Registration tab. Treat that as the front door and the 800-424-4014 line as the escalation path. [5][8]

## CG-BEH-02 is no longer the criteria set — MCG B-806-T is

Plenty of ABA billing playbooks still say Anthem reviews ABA under clinical guideline CG-BEH-02, "Adaptive Behavioral Treatment." For Colorado commercial that stopped being true in 2024. A signed Anthem letter to Colorado providers, dated February 1, 2024 and flagged as a material adverse change, states that beginning with dates of service on or after June 1, 2024, Anthem and its subsidiary HMO Colorado, Inc. would transition from CG-BEH-02 and MCG W0153 to MCG B-806-T, Behavioral Health Care Applied Behavioral Analysis (Original MCG Guideline), for medical necessity and clinical appropriateness reviews. [12][6]

The practical consequence is that there is no public criteria document to write your treatment plan against. MCG guidelines are licensed and proprietary; Anthem does not publish them. So the leverage moves to the things Anthem does publish — the Colorado ABA provider resource guide below, the documentation standards, and a clean, data-anchored treatment plan. If a denial letter still cites CG-BEH-02, that is worth flagging on appeal. [12][6]

For reauthorization, the published floor is in the Colorado ABA provider resource guide: “Documentation must show that the treatment plan was reviewed and/or updated at a minimum of every 6 months,” with “standardized assessments and current clinical information” used at reviews “especially documenting improvement.” The guide names no graph or data-recency requirement. Anything more specific sits in the licensed MCG criteria, so ask Anthem Behavioral Health (800-424-4014) what it wants in the reauthorization packet. [12][6]

## Weekly approved units: the March 2026 change that breaks old billing habits

Effective March 1, 2026, Anthem reimburses ABA in Colorado based on weekly approved units rather than total authorized units. Anthem's own framing of the consequence is blunt: claims should reflect the units rendered within each week, up to the weekly medically necessary limit as approved by prior approval, and claims submitted with units exceeding the weekly limit will be considered ineligible for reimbursement and will be adjusted accordingly. [7][6]

Practically, this ends the common pattern of banking unused hours and running a heavy make-up week after a vacation or a staffing gap. It also changes what intake needs to capture: a family's realistic, sustainable weekly availability is now a billing input, not just a scheduling nicety. The change applies across the whole ABA code set — 97151, 97152, 0362T, 97153, 97154, 97155, 97156, 97157, 97158 and 0373T. [7][6]

Code set: the Colorado ABA provider resource guide lists CPT 97151–97158, 0362T and 0373T and no HCPCS H-codes. ABA codes “may have associated MUE limits,” which Anthem administers as NCCI edits under its Code and Clinical Editing Guidelines policy. [7][6]

## The Colorado mandate: no caps, no small-group carve-out

Colorado's mandate — C.R.S. § 10-16-104(1.4), added by SB 09-244 — requires all health benefit plans issued or renewed in the state to cover the assessment, diagnosis and treatment of autism spectrum disorders, and it names applied behavior analysis explicitly in the definition of covered treatment. It is one of the stronger mandates in this directory for three reasons. [9]

First, the caps are gone. The pre-2017 text tied coverage to a rule from the commissioner requiring services actuarially equivalent to the old dollar limit; SB 15-015 struck that language effective January 1, 2017. What replaced it is a parity clause: coverage may not be subject to dollar limits, deductibles or coinsurance less favorable to the insured than those applying to physical illness generally. Second, there is no small-employer exemption anywhere in subsection (1.4) — the only carve-outs written into the definition of "health benefit plan" for this subsection are short-term limited-duration policies and individual grandfathered plans. Third, the statute forbids plans from excluding ASD or imposing additional authorization requirements that operate to exclude coverage. [9]

The limit on all of this is the familiar one: self-funded ERISA plans are preempted from state insurance law, so a Colorado family on a self-funded employer plan gets whatever the plan document and federal parity give them, not the mandate. Establish funding type before you quote anything from this section. [9]

## Two Colorado requirements that gate the file

- **A physician or psychologist must order it:** The statute says treatment for autism spectrum disorders shall be prescribed or ordered by a licensed physician or licensed psychologist. A BCBA's recommendation alone does not satisfy it — capture the ordering clinician at intake, not at appeal. [9][6]
- **The treatment plan is tied to the medical home:** Colorado requires the treatment plan to be developed in accordance with the patient-centered medical home as defined in C.R.S. § 25.5-1-103(5.5). Anthem's Colorado ABA guide reproduces this requirement and footnotes the statute, so it is a plan-document expectation, not just a statutory curiosity. [9][6]
- **Who counts as an autism services provider:** The statute lists six qualification pathways, from a doctoral-level clinician licensed by the Colorado medical board down to a BACB Registered Behavior Technician working under the supervision of one of the higher tiers. The ladder is broader than "BCBA only," which matters when you are staffing a case. [9][6]

## Licensure: national certification now, a Colorado license in 2028

Colorado has historically not licensed behavior analysts, leaning instead on the statutory "autism services provider" ladder and BACB certification. That changed in 2026: HB26-1425 became law and creates the Colorado Behavior Analyst Licensing Board under the Division of Professions and Occupations at DORA, with authority to license behavior analysts and assistant behavior analysts. The operative date is not now — on and after July 1, 2028, practising or offering applied behavior analysis without a board-issued license is prohibited, and doing so is a class 2 misdemeanor. [10][11][15]

As of October 11, 2026 all five board seats are still listed as vacant on the DORA program page and no license is being issued; DORA says behavior analyst and assistant behavior analyst applications "will be available in mid-Spring 2028" ahead of the July 1, 2028 date. So today's credentialing conversation with Anthem still runs on national certification plus the statutory ladder. The planning consequence is real, though: every analyst you expect to still be supervising Colorado cases in mid-2028 needs a licensure path, and the regulation carries a sunset review scheduled for September 1, 2031. [10][11][15]

## Can an out-of-state BCBA treat a Colorado member, including by telehealth?

Colorado does not license behavior analysts yet. HB26-1425 creates a Colorado Behavior Analyst Licensing Board in DORA, and “on and after July 1, 2028, an individual is prohibited from engaging in or offering the practice of applied behavior analysis unless the individual is licensed by the board”; unlicensed practice after that date is a class 2 misdemeanor. Until then there is no Colorado behavior analyst license to hold, and BACB certification is the operative credential. [10][6]

Anthem’s ABA Provider Resource Guide (June 2025) lists BCBAs among approved providers, alongside “other mental health service providers licensed or authorized by the state in which they practice and recognized by the affiliated health plan Anthem to be eligible for reimbursement,” and sends providers to the state-specific Credentialing with Anthem pages; for telehealth it points to Anthem’s Virtual Visits reimbursement policy for the allowed codes. It does not say which state’s license a remote BCBA needs, so confirm with Anthem credentialing before treating a member remotely from another state. [10][6]

## Anthem Colorado timely filing: initial, corrected and secondary claims

Initial claims: 90 days from the date of service for a professional (ABA) claim, unless your agreement says otherwise. Anthem’s Colorado commercial manual (effective 1/1/2026; the 2027 edition keeps the wording) sets no number of its own: "Claims must be submitted within the timely filing timeframe specified in the Provider or Facility Agreement," and "Claims submitted after the timely filing period expires will be denied, unless proof of timely filing can be demonstrated." The number comes from Anthem’s 2019 amendment of its Colorado commercial agreements: "Effective for all claims received by Anthem on or after October 1, 2019, all impacted contracts will require the submission of all professional claims within ninety (90) days of the date of service," and Anthem "will refuse payment if submitted more than ninety (90) days after the date of service." Check your own agreement: an agreement signed later can carry a different period. [4][3][2][1]

Corrected and rejected claims: a correction goes in as a replacement of the whole claim (837P CLM05-3 frequency code 7, with the original payer claim number in REF F8), or as a void/cancel (frequency code 8) for a claim billed in error. The manual gives no separate, longer window for corrections. For rejections it says: "Any rejected Claims must be corrected and resubmitted within the timely filing period." Only an accepted claim on the clearinghouse report counts as proof of timely filing. A timely-filing denial is appealed in writing through Availity’s Claims Status application, with the proof attached, not by phone. [4][3][2][1]

Secondary (COB) claims: "If Plan is the secondary payor, the ninety (90) day period will not begin until Provider receives notification of primary payor’s responsibility." Send the primary carrier’s EOB with the claim. Anthem’s COB notice says the documentation must show the claim reached Anthem within the filing limit counted from the date of the primary’s remittance advice. If the primary denied the claim, the clock runs from the date of its denial letter, which must be dated and on letterhead. A claim sent to Anthem as primary when Anthem is secondary denies for the missing EOB. [4][3][2][1]

Other claim fields: the Colorado commercial manual sets no EVV, taxonomy or referring/ordering-provider requirement for ABA claims. Where it mentions the referring provider, the purpose is routing out-of-area independent lab and specialty-pharmacy claims, not ABA. [4][3][2][1]

## How fast must Anthem Blue Cross and Blue Shield pay a clean claim in Colorado?

Colorado’s prompt-pay statute, C.R.S. § 10-16-106.5, requires clean claims to be “paid, denied, or settled within thirty calendar days after receipt by the carrier if submitted electronically and within forty-five calendar days after receipt by the carrier if submitted by any other means.” A claim that needs more information must get a written explanation of what is missing within thirty calendar days, and absent fraud every claim must be paid, denied or settled within ninety calendar days. A carrier that misses the clean-claim deadline owes 10% annual interest on the amount ultimately allowed, and one that misses the ninety-day deadline owes a penalty of 20% of that amount. These statutes bind fully insured plans issued in the state; a self-funded employer plan (ERISA) is not subject to them and follows its plan documents and your contract. [13][4]

Anthem’s Colorado commercial manual (effective 1/1/2026) publishes no payment-cycle calendar, check-run day or weekly submission cutoff. It covers only how payment arrives: electronic funds transfer through EnrollSafe (enrollsafe.payeehub.org). For providers not enrolled in EFT, Anthem is moving some payments from paper checks to a virtual credit card, and enrolling in EFT opts you out of virtual card payments. For a particular payment date, ask Anthem provider services or check the remittance in Availity. [13][4]

## Out-of-state Blue members in Colorado (BlueCard)

If you are in Anthem’s Colorado network and the child’s card is from another Blue plan, the BlueCard program routes the claim through Anthem. Anthem’s Colorado manual says BlueCard "allows Providers and Facilities to submit Claims for Members from other Blue Plans, domestic and international, to Anthem. Anthem is the sole contact for Claims payment, adjustments, and issue resolution." Bill Anthem, not the member’s home plan. [4]

The home plan still owns the member’s benefits. Anthem lists "Medical records requested by a Member’s Blue Cross Blue Shield (BlueCard) home plan" among the reasons it may ask for records beyond the claim. Provider disputes on BlueCard claims "are filed directly to the local Blue plan (Colorado)," but when the dispute is about the member’s benefits and you appeal on the member’s behalf, "appeals are coordinated with the Member’s benefit office for final determination." [4]

Anthem’s manual does not say whose ABA prior-authorization rules apply to a BlueCard member. The detail sits in the separate BlueCard Provider Manual, which the manual says is in the Provider Manual Library. Before the first session, ask the home plan (the number on the member’s card) about its ABA precertification requirements. Do not assume Anthem’s own list applies. [4]

## Intake gates

The questions that decide whether a family can start with Anthem BCBS Colorado, and what they have to bring.

- **Age limit**: No age limit. C.R.S. § 10-16-104(1.4) requires all health benefit plans issued or renewed in Colorado to cover the assessment, diagnosis and treatment of autism spectrum disorders, naming applied behavior analysis in the definition of covered treatment, and carries no age terms — the dollar-cap language that once framed coverage was struck effective January 1, 2017 and replaced with a parity clause. The only carve-outs written into the subsection are short-term limited-duration policies and individual grandfathered plans; self-funded ERISA plans are preempted out. [9]
- **Referral required?**: Required, and it is a Colorado-specific gate that catches files at appeal. The treatment plan must be "developed for an individual by an autism services provider and prescribed by a licensed physician or a licensed psychologist pursuant to a comprehensive evaluation or reevaluation," and must state the individual's diagnosis, the proposed treatment by type, frequency and anticipated duration, the anticipated outcomes stated as goals, and how often the plan will be updated. Capture the ordering clinician's name, credential and order date at intake. [6][9]
- **Telehealth**: Payable, with the code list held elsewhere. Anthem names two telehealth places of service for ABA in Colorado — "10 = Telehealth (member located in home while receiving services)" and "02 = Telehealth (member located outside of home while receiving services)" — each "subject to the member's coverage and reviews by the plan." Which codes are eligible is governed by Anthem's Virtual Visits reimbursement policy: "allowed codes may vary. Refer to the Allowed virtual services in addition to CPT Appendix P to obtain codes that are eligible for reimbursement in your state." [6]
- **Prior-auth decision time** _(plan-dependent)_: Depends on how the plan is funded. Fully insured Colorado plans follow C.R.S. § 10-16-112.5: within five business days after receipt the carrier must say the request is "approved, denied, or incomplete" (naming the missing information), then decide within five business days after receiving it; urgent requests within "two business days but not longer than seventy-two hours." If the carrier misses those deadlines the request "is deemed granted" — but the provider must send any requested information within two business days of the notice or loses that protection. An approval "is valid for at least one hundred eighty days after the date of approval and continues for the duration of the authorized course of treatment." Self-funded (ERISA) plans follow the federal claims rule instead: pre-service decisions within 15 days of receipt (one 15-day extension), urgent within 72 hours. Anthem's Colorado precertification list and ABA resource guide publish no separate decision clock or submission lead time. [16][17]
  - Ask the plan: Benefits verification: fully insured Colorado policy (5-business-day clock, 180-day approvals, deemed-granted rule) vs. self-funded ERISA plan (15 days / 72 hours).
- **Other insurance (who pays first)** _(plan-dependent)_: For a child on two parents' plans, Colorado's group coordination-of-benefits regulation (fully insured plans): parents married or living together — "The plan of the parent whose birthday falls earlier in the calendar year is the primary plan" (same birthday → the plan that covered the parent longer); otherwise a court decree controls, and without one the order is custodial parent, custodial parent's spouse, non-custodial parent, then the non-custodial parent's spouse. Self-funded plans set their own order in the plan document. Anthem's Colorado ABA documents publish no coordination-of-benefits rule of their own. If the child also has TRICARE, this plan pays first — TRICARE is the secondary payer to other health insurance under its double-coverage rule (Medicaid is the only coverage it pays ahead of). CHAMPVA likewise pays last: "In double coverage situations, CHAMPVA would be the last payer." If the child also has Medicaid, this plan is primary and Medicaid pays last. [18][19][20][21]
  - Ask the plan: Benefits verification with both plans: funding type, which is primary for the child, and whether the secondary plan requires its own authorization.
- **Diagnosis recency** _(licensed criteria)_: Not published. Anthem reviews ABA in Colorado against MCG B-806-T, which is licensed and proprietary, and the Colorado ABA provider resource guide states no recency rule for the diagnostic evaluation. The nearest published anchor is structural rather than temporal: the treatment plan must be prescribed "pursuant to a comprehensive evaluation or reevaluation," which contemplates re-evaluation without naming a clock. [6][9]
  - In licensed criteria: Anthem Behavioral Health at 800-424-4014, or the authorization request itself through Availity Essentials — MCG B-806-T is not publicly available.
- **Who may diagnose** _(licensed criteria)_: Who may make the ASD diagnosis is not published — the criteria set is MCG B-806-T, which Anthem does not publish. What Colorado does fix is the prescriber: the treatment plan is "developed for an individual by an autism services provider and prescribed by a licensed physician or a licensed psychologist pursuant to a comprehensive evaluation or reevaluation," and the statute requires treatment for ASD to be prescribed or ordered by a licensed physician or licensed psychologist. A BCBA's recommendation alone does not satisfy it. [6][9]
  - In licensed criteria: Anthem Behavioral Health at 800-424-4014 for the diagnostic-credential standard applied under MCG B-806-T.
- **Diagnostic tools required** _(licensed criteria)_: Not published. Anthem's Colorado ABA provider resource guide covers credentialing, coding, documentation, place of service and supervision, but names no diagnostic or assessment instrument, and the operative criteria set (MCG B-806-T) is proprietary. [6]
  - In licensed criteria: Anthem Behavioral Health at 800-424-4014 — ask which instruments MCG B-806-T expects behind the diagnosis and behind the requested intensity.

## Delivery and billing rules

Coverage decides whether Anthem BCBS Colorado pays. These decide whether the claim survives: staffing and supervision, concurrent billing, per-day ceilings, who signs the note, where the service is payable, and whose NPI the claim goes out under.

- **Supervision**: No ratio is published — Anthem sets a supervision structure instead. Approved ABA service providers include "providers practicing under the direction and supervision of the BCBA," and the statutory autism-services-provider ladder Anthem reproduces ends with a BACB registered behavior technician who "provides direct services to a person with an autism spectrum disorder under the supervision of an autism services provider" in one of the five higher tiers. Anthem's own supervision paragraph is a billing rule rather than a dosage rule: supervised or directed services billed with a QHP-performed procedure are subject to its Incident To Services and Billing reimbursement policy. The Colorado ABA provider resource guide sets no caseload cap on technicians per BCBA either. [6][9]
- **Concurrent billing (97153 + 97155)**: Allowed only in the narrow case: a physician or other QHP billing 97155 can add 97153 only if both the technician and the QHP are face-to-face with the patient at the same time and the QHP is directing the technician. [6]
- **Daily limits / MUEs**: No Anthem-specific daily unit ceiling is published for Colorado. ABA codes may carry CMS MUE limits, which Anthem administers as NCCI edits under its Code and Clinical Editing Guidelines reimbursement policy and refreshes when CMS publishes. The binding practical ceiling is instead the weekly approved units on the authorization (effective March 1, 2026). [6][7]
- **Session-note signature**: Each entry must carry author identification — handwritten signature, unique electronic identifier, or initials — plus rendering provider credentials. Entries should be made at the time of service or shortly thereafter and should not exceed 30 days, with a signature date within 30 days of the date of service. Timed codes need total treatment minutes plus start and stop times in the record. Treatment plans must show review or update at least every 6 months. [6]
- **Place of service**: POS codes Anthem names for ABA in Colorado: 12 home, 11 office/clinic, 99 community, 03 school, 10 telehealth with the member at home, 02 telehealth with the member elsewhere — each subject to the member's coverage and plan review. [6]
- **Bill as provider**: ABA performed by therapy assistants, behavior technicians or paraprofessionals must show the supervising BCBA or other qualified healthcare professional in box 31 of the CMS-1500. Degree-level modifiers HM (less than bachelor's), HN (bachelor's) and HO (master's) identify the rendering staff level. [6]

## What intake should collect for Anthem BCBS Colorado

- **Plan funding type, first:** Fully insured Colorado plan (mandate applies) vs. self-funded ERISA (preempted, federal parity only). Anthem's Colorado precert list applies to local fully-insured members and only to ASO members whose group purchased the medical-management program — so funding type also decides whether the precert rules on this page apply at all.
- **The ordering physician or psychologist:** Colorado requires ABA to be prescribed or ordered by a licensed physician or licensed psychologist. Get the name, credential and order date up front; it is the cheapest fix at intake and the most expensive one at appeal.
- **Diagnosis report and evaluation date:** DSM-5 ASD diagnosis, the diagnosing provider and their credentials, and the instruments used.
- **Realistic weekly availability:** Weekly approved units mean the schedule the family can actually keep is a billing constraint. Over-request and you bank hours you cannot bill; under-request and you cannot flex.
- **Supervising BCBA identity and NPI:** Technician-delivered sessions must carry the supervising BCBA or other qualified healthcare professional in box 31 of the CMS-1500 — decide who that is before the first session, not at the first claim rejection.

Free verification-call checklist (PDF): https://carelu.com/downloads/aba-verification-call-checklist.pdf

## Common questions

### Does Anthem BCBS Colorado cover ABA therapy?

Yes. Colorado's mandate (C.R.S. § 10-16-104(1.4)) names applied behavior analysis as covered treatment for autism spectrum disorders in all health benefit plans issued or renewed in the state, and Anthem precertifies ABA as a behavioral health service. Self-funded ERISA plans sit outside the mandate, so confirm funding type first.

### Does ABA prior authorization go to Anthem or to Carelon in Colorado?

To Anthem. Anthem's Colorado precertification list names Anthem as the responsible party for behavioral health services and points to its Behavioral Health line, 800-424-4014; submit through Availity Essentials. The Carelon names that appear throughout that list are Carelon Medical Benefits Management (imaging, genetics, cardiology, MSK, rehab therapy) and CarelonRx — neither handles ABA.

### What changed for Anthem Colorado ABA claims in March 2026?

From March 1, 2026 reimbursement is based on weekly approved units rather than total authorized units. Units rendered above the approved weekly limit are ineligible for reimbursement and get adjusted, so banking hours across weeks no longer works.

### Is there a dollar cap on ABA under Colorado's autism mandate?

No. The cap language was struck effective January 1, 2017, and the statute now requires that coverage not be subject to dollar limits, deductibles or coinsurance less favorable than those applied to physical illness generally. There is also no small-employer exemption in the autism subsection.

### Does Colorado license behavior analysts?

Not yet, but it will. HB26-1425 became law in 2026 and creates the Colorado Behavior Analyst Licensing Board; on and after July 1, 2028 practising applied behavior analysis without a board-issued license is prohibited. Until then the statutory "autism services provider" ladder, built on BACB certification, is the operative standard.

### Can an out-of-state BCBA treat Anthem members in Colorado, including by telehealth?

Colorado has no behavior analyst license yet; HB26-1425 makes one mandatory from July 1, 2028. Anthem’s ABA guide accepts BCBAs and providers “licensed or authorized by the state in which they practice”; confirm the license question with Anthem credentialing.

### What is Anthem BCBS of Colorado's timely filing limit for claims?

For professional (ABA) claims it is 90 days from the date of service, unless your agreement says otherwise. Anthem moved its Colorado commercial agreements to 90 days for claims received from October 1, 2019, and its current manual defers to the timeframe in your Provider or Facility Agreement. Rejected claims must be corrected and resubmitted inside that same period. When Anthem is the secondary payer, the 90 days start when you receive the primary payer's determination, so send the primary EOB with the claim.

### How fast must Anthem Blue Cross and Blue Shield pay a clean ABA claim in Colorado?

Colorado law (C.R.S. § 10-16-106.5) gives a fully insured plan 30 calendar days to pay, deny or settle a clean electronic claim (45 for paper), 90 days for any claim absent fraud, with 10% interest and a 20% penalty after 90 days. Self-funded employer plans are not bound by the statute.

### I am in Anthem’s Colorado network. Can I treat a child with another state’s Blue plan?

Yes, through BlueCard. Submit the claim to Anthem, which is "the sole contact for Claims payment, adjustments, and issue resolution." The member’s home plan still sets the benefits and may ask for records. Check the home plan’s ABA prior-authorization rules before starting.

## Primary sources

1. [Anthem Colorado Provider News: Coordination of benefits — how to avoid timely filing denials](https://providernews.anthem.com/colorado/articles/coordination-of-benefits-how-to-avoid-timely-filing-denials-20502)
2. [Anthem Colorado Provider News (Commercial, Sept 2019): changes to timely filing requirements](https://providernews.anthem.com/colorado/articles/reminder-changes-to-timely-filing-requirements-coming-in-october-5-3083)
3. [Anthem Colorado — 2027 Commercial Provider Manual (effective 1/1/2027)](https://www.anthem.com/content/dam/digital/docs/provider/commercial/manuals/PM_CO_00016.pdf)
4. [Anthem Colorado — Commercial Provider and Facility Manual (effective 1/1/2026)](https://www.anthem.com/content/dam/digital/docs/provider/commercial/manuals/PM_CO_00015.pdf)
5. [Anthem Colorado Precertification/Prior Authorization List (updated 07/10/2026)](https://www.anthem.com/content/dam/digital/docs/provider/commercial/guides/CO_PA_List.pdf)
6. [Anthem ABA Provider Resource Guide — Colorado (June 2025)](https://www.anthem.com/content/dam/digital/docs/provider/commercial/guides/aba-provider-resource-guide-co.pdf)
7. [Anthem Colorado — Streamlined ABA claim process starts March 1, 2026](https://providernews.anthem.com/colorado/articles/streamlined-aba-claim-process-starts-march-1-2026-27885)
8. [Anthem Colorado — submit behavioral health authorizations through Availity Essentials](https://providernews.anthem.com/colorado/articles/streamline-your-workflow-submit-behavioral-health-authorizat-27237)
9. [C.R.S. § 10-16-104 (Justia)](https://law.justia.com/codes/colorado/title-10/article-16/part-1/section-10-16-104/)
10. [Colorado HB26-1425 — Applied Behavior Analysis Services (Became Law)](https://leg.colorado.gov/bills/HB26-1425)
11. [Colorado DORA — Behavior Analyst program page](https://dpo.colorado.gov/BehaviorAnalyst)
12. [Anthem Colorado — MCG Care Guidelines 27th edition update (Feb 1, 2024)](https://files.providernews.elevancehealth.com/3731/COBCBS-CM-047275-23-MCG-Care-Gdlns-27th-Ed-6.1.24-Updte-BH_FINALv2.pdf)
13. [C.R.S. § 10-16-106.5 — Prompt payment of claims (CRS 2024 official printout, Title 10)](https://leg.colorado.gov/sites/default/files/images/olls/crs2024-title-10.pdf)
14. [Anthem Blue Cross and Blue Shield Colorado — Provider News](https://providernews.anthem.com/colorado)
15. [Colorado DORA — Behavior Analyst Applications and Forms (applications open mid-Spring 2028)](https://dpo.colorado.gov/BehaviorAnalyst/Applications)
16. [C.R.S. § 10-16-112.5 — Prior authorization for health-care services](https://colorado.public.law/statutes/crs_10-16-112.5)
17. [29 CFR 2560.503-1 — ERISA claims procedure (eCFR)](https://www.ecfr.gov/current/title-29/section-2560.503-1)
18. [3 CCR 702-4-6-2-6 — Rules for Coordination of Benefits (LII)](https://www.law.cornell.edu/regulations/colorado/3-CCR-702-4-6-2-6)
19. [32 CFR 199.8 — TRICARE double coverage (eCFR)](https://www.ecfr.gov/current/title-32/section-199.8)
20. [38 CFR 17.270 — CHAMPVA definitions, double coverage (eCFR)](https://www.ecfr.gov/current/title-38/section-17.270)
21. [HCPF — General Provider Information Manual (Third-Party Liability / Coordination of Benefits)](https://hcpf.colorado.gov/gen-info-manual)

Payer policies change frequently and vary by plan, state, and funding type. This guide was compiled from the sources above and last reviewed October 2026; it is general information, not billing, legal, or clinical advice. Always verify current requirements against the payer's live policy and a benefits check for the specific member.

Source: Carelu ABA Payer Directory — https://carelu.com/payers. Free to cite with attribution.