For an intake team in Colorado, a UnitedHealthcare card means three layers at once: the carrier's national clinical policy, Colorado's autism insurance mandate (C.R.S. § 10-16-104(1.4)), and the plan's funding type deciding which of the two actually binds. This guide stacks them in order. Note the contrast with Colorado Medicaid: Optum's policy requires a validated ASD diagnosis, while Health First Colorado does not — so a family that qualifies for Medicaid ABA without a diagnosis will still need one here.
UnitedHealthcare administers ABA through Optum Behavioral Health as a two-step authorization on the Provider Express portal — assessment authorized first, then treatment — under Optum's Supplemental Clinical Criteria, with continued-service reviews every 4–6 months and an operational flag when utilization falls below 80% of authorized hours. That clinical policy is national — what changes in Colorado is the legal floor underneath it: the state mandate below governs what fully-insured plans must cover, while self-funded employer plans answer to ERISA and federal parity instead. Plan funding type is therefore the first fact to establish on every benefits check. Notably, Colorado has NO entry in Optum's ABA State Mandates supplemental criteria (effective January 2026) — there is no Colorado-specific Optum clinical overlay, so the national guideline plus the state mandate is the whole picture. The full national policy breakdown lives in our UnitedHealthcare / Optum guide; this page covers what changes in Colorado.[1][2][6]
Code set: Optum’s commercial ABA reimbursement policy (updated 06/2026) covers CPT 97151–97158, 0362T and 0373T, each a 15-minute unit with its own daily maximum. It lists no HCPCS H-code for ABA.[1][2][6]
Colorado's mandate — C.R.S. § 10-16-104(1.4), originally 2009's SB 09-244 — is one of the stronger ones in our directory: it applies to all health benefit plans issued or renewed in Colorado except short-term limited-duration policies and individual grandfathered plans, carries no age limits, and carries no dollar caps — the historical $34,000/year (birth-8) and $12,000/year (9-18) ABA caps no longer appear in the current statute text, and carriers may not deny or restrict coverage because of an ASD diagnosis or utilization of mandated benefits. The statute also defines "autism services provider" with six qualification pathways reaching down to BACB Registered Behavior Technician. Self-funded ERISA plans are exempt by federal preemption, and MHPAEA parity applies on top for plans covering mental-health benefits — the caps' removal from the statute aligns the mandate with parity rather than fighting it.[3]
UnitedHealthcare's Medicaid footprint in Colorado runs through Rocky Mountain Health Plans (a UnitedHealthcare company) — RAE Region 1, the RMHP PRIME product, and RMHP CHP+. But unlike most states, that does not create a separate UHC Medicaid ABA process: ABA is a statewide fee-for-service carve-out from the RAE capitation, so RMHP does not authorize or pay ABA claims. A family on RMHP follows the Health First Colorado process — PAR via Acentra's Atrezzo portal, state fee schedule — covered in our Colorado Medicaid guide. Verify which line of business the card belongs to, then route Medicaid members to the state process, not a UHC portal.[5]
Colorado currently requires no state license to practice behavior analysis — BCBA/BACB certification is the operative credential. That is changing: HB26-1425 (signed June 2, 2026) creates a Colorado Behavior Analyst Licensing Board under DORA's Division of Professions and Occupations, and on and after July 1, 2028 practicing ABA without a behavior analyst or assistant behavior analyst license becomes a class 2 misdemeanor; the law also mandates state licensure of ABA clinics. Practices should put the 2028 licensure conversion on their credentialing roadmap now. On rates: UnitedHealthcare does not publish commercial ABA fee schedules for Colorado (none of the national carriers do) — rates are contract-negotiated and live in your participating-provider agreement; the Health First Colorado fee schedule (97153 at $17.20/unit for DOS 10/1/2025+) is the published in-state benchmark.[4]
UnitedHealthcare commercial ABA is managed by Optum Behavioral Health, which publishes no ABA rate table. Optum's ABA FAQ tells contracted providers to "bill your contracted billing codes and customary charges as outlined on your Fee Schedule after receiving appropriate authorization. You will be reimbursed based on your contracted rate." The fee schedule is the one attached to your Optum agreement; non-contracted providers get approvals through the behavioral-health number on the member's card.[7]
Joining the network: Optum lists credentialing and contracting criteria for ABA providers (BCBA with active certification, state licensure where the state licenses behavior analysts, six months of supervised ABA experience, and professional liability of $1 million per occurrence) and takes applications through the "Join Our Autism/ABA Network" section of its ABA page on Provider Express. Credentialing "can take from 45 to 120 days after submission of all materials," every new agency gets a site audit that can take up to 90 days to schedule, and a single case agreement while credentialing is "Not automatically" available, only in exception cases such as a network gap. Technicians working 1:1 must hold RBT, BCAT or ABAT certification (or an approved alternative).[7]
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.[4][11]
Optum, which runs UnitedHealthcare’s commercial behavioral network, is explicit. Its National Network Manual (effective September 1, 2026): “Providers offering telehealth visits must be licensed in the state where the member is located at the time of service. In addition, providers must comply with all licensing laws and telehealth regulations in the jurisdiction(s) where the provider is licensed and where the member is receiving treatment.” Colorado issues no behavior analyst license until the HB26-1425 board starts licensing, so how Optum applies that member-state rule to a BCBA treating a Colorado child before then is a question for Optum provider relations, not something the manual settles.[4][11]
UnitedHealthcare’s ABA benefit is managed by Optum Behavioral Health, whose National Network Manual (effective September 1, 2026) requires everything needed to process a claim to reach Optum “no more than 90 calendar days from the date of service, or as allowed by state or federal law or the member’s specific benefit plan,” with corrections within 90 days of first receipt. Clean, authorized claims are “generally” paid within 45 calendar days of receipt or as state or federal law requires. Disputes run in two steps — reconsideration, then appeal — with 12 months in total for both unless state law or your participation agreement sets a different deadline.[11]
Secondary claims: the Optum manual sets no separate deadline for a secondary claim, so the 90-day limit applies, and when Optum is secondary it pays “up to the Optum contracted rate.” The manual publishes no payment-cycle day or submission cutoff.[11]
Neither Optum’s network manual nor UnitedHealthcare’s commercial guide imposes EVV on ABA; EVV is a Medicaid requirement.[11]
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.[10]
Not for ABA. Optum, which manages UnitedHealthcare’s behavioral benefit, says in its National Network Manual (effective September 1, 2026) that a claim must carry the coding (ICD diagnosis, CPT/HCPCS and modifiers), the member ID number, customary charges, and the provider’s TIN and NPI. Paper Form 1500 claims add the member and subscriber names and dates of birth, the length of session, the type and duration of service, and the clinician’s name, credentials, Tax ID and NPI. A referring provider is not on either list.[11][12]
UnitedHealthcare’s 2026 administrative guide requires the referring provider’s name and NPI only on laboratory, DME, imaging and home health claims. For every other claim, it requires “a valid billing NPI, rendering NPI and relevant taxonomy code(s)” and says “we encourage you to submit the referring health care provider’s NPI.” In short, the referring NPI is optional on an ABA claim, and leaving it off is not a denial reason under either document.[11][12]
The questions that decide whether a family can start with UnitedHealthcare / Optum in Colorado, and what they have to bring. Each maps onto something intake should ask on the first call.
Optum's Supplemental Clinical Criteria set no recency clock on the ASD diagnosis. What they require instead is current assessment: the comprehensive diagnostic evaluation and functional assessment "form the basis for the treatment plan," baseline skills and norm-referenced measures must reflect the individual's "specific and current abilities," and continued coverage rides on documentation of movement from baseline at each 4–6 month review.[1]
"A valid diagnosis of ASD (or other applicable diagnosis as required by governing laws) must be issued by a state licensed physician, psychologist, or other state licensed clinician qualified to make such diagnosis according to the diagnostic criteria based on the DSM-5-TR." The diagnosing clinician must also confirm and document the severity level.[1]
The DSM-5-TR diagnosis and severity level must be "confirmed and documented by the diagnosing clinician using at least one clinically validated tool," on a three-tier list: first-level screening (ABC, CHAT/M-CHAT, CSBS-DP-IT Checklist, ASQ, AQ, CAST), second-level screening (CARS/CARS-2, RITA-T, STAT) and formal diagnostic tools used in a comprehensive evaluation (ADI-R, ADOS/ADOS-2, DISCO). Treatment intensity must then be set against at least one validated measurement tool — ATEC, VB-MAPP, ABLLS/ABLLS-R, AFLS, PEAK, SSIS, RBS-R, SRS, VABS or CFQL-2.[1]
No physician referral or order is required. The front door is Optum's two-step authorization on Provider Express — "Prior authorization is required for ABA (unless otherwise specified or mandated by contract or law)" — with the diagnosis, the credentialed ABA provider and the assessment package standing in for a referral.[1]
Three codes, after an attestation. Optum’s Telehealth Billing guide (updated September 2025) is explicit for commercial plans: “For ABA services, telehealth is only allowed for these 3 CPT codes: 97155, 97156 or 97157” — virtual supervision of technicians and family training — so technician-delivered 97153 is not payable by telehealth. The provider must first be “an approved Optum virtual visits provider who has attested” (the virtual-visits attestation on Provider Express) and must tell the ABA Care Advocate at authorization. Bill the in-person code with the member’s location as the place of service: POS 10 when the member is at home, POS 02 anywhere else (the older ABA CPT FAQ says POS 02; the 2025 guide requires one of the two on every behavioral-health telehealth claim, and POS 11 or a telehealth modifier alone is not paid). Optum’s criteria add that telehealth is “not intended to supplant in-person service.” The assessment is not on that list: 97151 (initial assessment and reassessment) and 97152 are not payable by telehealth for commercial members, so plan the assessment in person. Supervision is: 97155 is billed with the in-person code and POS 02 or 10 after the attestation (Optum's ABA FAQ, Q29), and Optum publishes no minimum in-person share of supervision.[8][7][1]
Colorado's mandate carries no age limit: C.R.S. § 10-16-104(1.4) applies to all health benefit plans issued or renewed in the state except short-term limited-duration policies and individual grandfathered plans, with no age terms and no dollar caps (the cap language was struck effective 1/1/2017). The carrier's national ABA policy adds no age bound of its own, so age comes from the benefit document — and self-funded ERISA plans sit outside the mandate entirely. Colorado still has no entry in Optum's ABA State Mandates supplemental criteria (BH803ABASTM72026, effective July 2026), so no carrier-specific state overlay narrows this.[3][1][2]
Ask the plan: Benefits verification on the specific plan — funding type first, then the ABA benefit terms.
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. UnitedHealthcare's commercial administrative guide states "Standard requests: up to 15 calendar days" and "Expedited requests: 72 hours," and asks for requests "at least 15 calendar days in advance, if possible," and at least 5 business days before the service — for a fully insured Colorado plan the state's shorter clock controls. ABA reviews run through Optum Behavioral Health.[13][14][12]
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).
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. UnitedHealthcare: "COB is administered according to the member's benefit plan and in accordance with law"; Optum: "You are responsible for determining if the member has other insurance coverage. If so, you should bill the primary insurance carrier first, then notify Optum of your findings." 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.[15][12][11][16][17][18]
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.
Coverage decides whether UnitedHealthcare / Optum in Colorado pays. These decide whether the claim survives: how sessions must be staffed and supervised, what may be billed concurrently, the per-day ceilings, who signs the note, where the service is payable, and whose NPI the claim goes out under.
Two numbers, from two documents. Clinically, "consistent with CASP standards of care, direct case supervision is required 1–2 hours for every 10 hours of direct treatment per week," with technicians under the supervision of a BCBA or licensed behavioral health clinician and parents discouraged from serving as their own child's RBT. On the claim side, the commercial reimbursement policy polices the boundary rather than a ratio: "CPT codes 97153 and 97155 may not be billed for technician training," and 97155 "should be reported only for services where the QHP is either engaged directly with the patient or is directing a technician in implementing a modified protocol with the patient" — treatment planning is indirect and not separately reimbursable. Neither Optum document caps the number of technicians one BCBA may supervise.[1][6]
Yes, with a single-provider exclusion. "Can I report 97153 or 97154 with 97155 concurrently? A. Yes, as long as the criteria in the descriptors of both codes are met. A single QHP may not report 97153 or 97154 with 97155 concurrently." So the concurrency has to be two people — technician on 97153, analyst on 97155 directing them with the patient present. Separately, 97155 and 97156 may both pay on the same date of service only if the services are separate, distinct and clearly documented in the progress notes.[6]
Optum publishes its own per-day table on top of CMS MUEs — maximum frequency per day: 97151 32 units (8 hrs), 97152 16 (4 hrs), 97153 32 (8 hrs), 97154 18 (4.5 hrs), 97155 24 (6 hrs), 97156 16 (4 hrs), 97157 16 (4 hrs), 97158 16 (4 hrs), 0362T 16 (4 hrs), 0373T 32 (8 hrs). MUEs otherwise apply per CMS guidance, and billing above 32 units/day of 97153 "may be subject to non-reimbursement or recovery."[6]
“Provider signature is required on progress notes. Parent/guardian signatures are not required on progress notes” (Optum ABA CPT FAQ). Each daily session note records place of service, start and stop time, who rendered the service, the specific service, who attended and the interventions. Optum’s ABA documentation protocol (June 1, 2026) requires the “signature of the rendering provider” and “Legible identity of the rendering provider with credentials,” and “The date of signature must reflect the date the note is finalized” — a note signed after the date of service must follow late-entry rules and show the date it was signed. Same-date services must be “separate, distinct, and clearly documented in the progress notes,” or the claim may be denied.[7][9][6]
One provider-level modifier per line, matching whoever actually rendered the service: HM = Registered Behavior Technician (less than bachelor's level), HN = BCaBA (bachelor's level), HO = BCBA or master's-level licensed clinician, HP = BCBA-D or doctoral-level licensed clinician. A billable ABA-supervisor service is billed with the applicable CPT code plus HO. Stacking level modifiers is a denial risk: "Billing multiple provider-level modifiers (HN, HM, HO, HP) on the same service line same service and same DOS is not appropriate and may result in claim denial."[6]
No POS code list is published. The clinical criteria draw the school line instead: ABA is not covered for "services that are not ABA therapy, such as 1:1 aid delivered simultaneously during classroom instruction, or services covered under the Individuals with Disabilities Education Act (IDEA)," while "school ABA services do allow for coordination of services and would cover services such as teacher training, meetings with school personnel, and observations in the school setting."[1]
Ask the plan: UnitedHealthcare/Optum provider services and the member's benefit document.
Yes — under the carrier's national policy for ASD, layered on Colorado's mandate (C.R.S. § 10-16-104(1.4)) for fully-insured plans. Self-funded employer plans are exempt from the mandate, so always verify plan funding type first.
No — Colorado has no entry in Optum's ABA State Mandates supplemental criteria (effective January 2026), so the national two-step authorization guideline plus the state mandate is the whole picture.
RMHP is UnitedHealthcare's Colorado Medicaid footprint, but ABA is a state fee-for-service carve-out — RMHP does not authorize or pay ABA claims. Those members follow the Health First Colorado process (Acentra PAR, state fee schedule) in our Colorado Medicaid guide.
Commercial ABA rates are not published — they are negotiated in your participating-provider agreement. Benchmark against the Health First Colorado fee schedule, and treat rate-setting as part of contracting.
Optum, which manages UnitedHealthcare’s behavioral health benefits, says “At a minimum, most treatment reviews are required every 4-6 months depending on the account/state law.” Call in the continued-care request “no more than 30 days prior to the current approvals on file expiring,” with updated progress data measured the same way as baseline and updated standardized measures. There is no fixed reassessment frequency (“There is no required frequency at which an assessment must take place”) — ask for reassessment hours inside the treatment request. If more hours are needed mid-authorization, call the ABA team with a clinical rationale.
Supervision yes, assessment no. For commercial plans Optum allows telehealth only on 97155, 97156 and 97157, after a virtual-visits attestation, billed with POS 02 or 10. The 97151 assessment is not on that list.
Optum takes ABA applications through the "Join Our Autism/ABA Network" section of Provider Express. Credentialing takes 45 to 120 days after a complete submission, plus a site audit for new agencies. Optum publishes no statement that its network is closed.
Mostly no. Optum's ABA FAQ says school-based services are reviewed for medical necessity, but "school-based ABA services or services that are otherwise covered under the Individuals with Disabilities Education Act (IDEA) are not covered (e.g., a 1:1 aid in the school setting)." Coordination is covered: teacher training, meetings with school staff and observations in school.
Colorado has no behavior analyst license yet; HB26-1425 makes one mandatory from July 1, 2028. Optum (UnitedHealthcare) requires telehealth providers to “be licensed in the state where the member is located at the time of service”; ask Optum how it applies that before Colorado licensing starts.
Optum Behavioral Health, which manages UnitedHealthcare’s ABA benefit, requires claims within 90 calendar days of the date of service unless state or federal law or the member’s plan allows longer (National Network Manual, effective September 1, 2026).
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.
No. Optum’s claim requirements do not include a referring provider. UnitedHealthcare makes the referring name and NPI mandatory only for lab, DME, imaging and home health claims. For other claims it encourages the referring NPI but does not require it.
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.
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