New Mexico Medicaid (Turquoise Care) ABA coverage: the intake guide.

No upper age limit. NMAC 8.321.2.13 says it outright: "There is no age requirement to receive ABA services and ABA is a covered benefit for medicaid enrolled adults." Recipients under 21 receive ABA as part of EPSDT (42 CFR § 441.57), and MAD Supplement 24-13 runs an explicit adult benefit across all three stages. At the bottom end the diagnosed pathway opens at 12 months and the at-risk pathway is bounded at 12–36 months of age.^[1][2]

New Mexico is not a strict-diagnosis state, so the recency rule attaches to the referral rather than to a required diagnosis. NMAC 8.321.2.13 lets a recipient be referred for stage two and three services on a presumptive diagnosis of ASD by a licensed practitioner whose scope of practice allows them to render it, and "This diagnosis must have been received within three years of referral to stage two or three services." Where the recipient already carries an ASD diagnosis, diagnostic re-evaluation is not necessary — but an Integrated Service Plan and a medical-necessity determination for ABA are still required. Per the guide’s reading of Supplement 24-13, adults need ASD confirmation by a Grace Exception Practitioner within the last 3 years. The at-risk pathway needs no diagnosis at all.^[1][2]

Confirmation of the presence of — or risk for — ASD normally comes from an approved Autism Evaluation Provider (AEP) through a comprehensive diagnostic evaluation; a targeted evaluation is used when a fully diagnosed recipient presents with behaviors changed from the last CDE, and an ASD risk evaluation when the at-risk criteria in Subsection C are met. To avoid delaying stage two and three, a recipient may instead be referred with a presumptive ASD diagnosis from any licensed practitioner whose scope of practice allows them to render an ASD diagnosis, received within three years of the referral.^[1]

Yes, and it is the structural gate in New Mexico. Stage one is an evaluation by an approved Autism Evaluation Provider, who "must" develop an Integrated Service Plan (ISP) together with a referral to an approved ABA provider agency. The ISP and the CDE or targeted evaluation must accompany every stage-three prior authorization request, alongside the ABA treatment plan. The alternative front door, built into the rule to avoid delay, is a referral on a presumptive ASD diagnosis from a licensed practitioner within scope, received within three years of referral.^[1]

Depends on who holds the member. MCO members (all four Turquoise Care plans): the HCA contract requires each plan to “adjudicate standard prior authorization requests within seven (7) Business Days after receipt of all necessary and relevant documentation”, and requests are “deemed granted for determinations not made within the seven (7) Business Day turn-around time” (extension up to 14 calendar days on request or with justification); expedited decisions come “no later than twenty-four (24) hours after the receipt of all necessary and relevant documentation”, also deemed granted if missed. The same clause binds each MCO to “the most rigorous standards” of the NM Prior Authorization Act, NCQA, HCA regulation or 42 CFR 438.210(d) — and for rating periods starting on or after January 1, 2026, 438.210(d) caps standard decisions at 7 calendar days after the request is received (72 hours expedited), so plan against 7 calendar days from receipt. Fee-for-service members (MAD’s Third-Party Assessor): 42 CFR 440.230(e), beginning January 1, 2026, requires standard decisions “in no case later than 7 calendar days after receiving the request” and expedited within 72 hours, extendable up to 14 calendar days. Reauthorization: Supplement 24-13 sets no day count, only that the ABA Treatment Plan Update and Progress Report “must be prepared and submitted to the MCO or TPA prior to the end of the recipient’s Prior Authorization period”.^{[15][16][17][18][2]}

Medicaid pays last. The TPL rule: “When providers are aware of the existence of health insurance or health plan coverage for eligible recipients, the providers must seek payment from the insurance carrier before seeking payment from medicaid”; Medicaid then pays at most its allowed amount less the other payer’s payment, capped at the co-pay, co-insurance or deductible the primary calculated, and the family cannot be billed the rest. Policies delivered in New Mexico, “including employee retirement income security Act (ERISA) plans”, may not exclude or limit benefits because the child is Medicaid-eligible. The HCA contract makes Medicaid “the payer of last resort” and adds the trap: the plan “shall deny payment on a Claim that has been denied by a third-party payer when the reason for denial is the Provider’s or Member’s failure to follow prescribed procedures, including but not limited to failure to obtain prior authorization” — so secure the commercial plan’s ABA authorization first. The same contract says “Claims for EPSDT shall be paid at the time presented for payment by the Provider and the CONTRACTOR shall bill the responsible third party”; whether an ABA claim is handled under that EPSDT pay-and-chase exception is not spelled out, so confirm with the plan before skipping the primary. TRICARE also pays ahead of Medicaid: its own secondary-payer rule exempts “a plan administered under title XIX”. The rule also lists pay-and-chase (no cost avoidance) for “preventive services for children including early and periodic screening, diagnosis and treatment services”. Neither the rule nor the contract says whether Medicaid’s own ABA prior authorization is still needed when Medicaid is secondary — see the per-MCO guides (Presbyterian publishes an answer).^{[19][15][20][21]}

NMAC 8.321.2.13 names no required diagnostic instrument. The diagnosis is made against the latest DSM or ICD by the AEP, and the at-risk criteria require developmental differences and delays "as measured by standardized assessments" without naming which. Instrument-level requirements, if MAD publishes any, sit in the Behavioral Health Policy and Billing Manual and Supplement 24-13 rather than in the rule.^[1]

Ask the plan: MAD Behavioral Health Policy and Billing Manual / Supplement 24-13 via the HCA ABA provider information page — hca.nm.gov blocked automated retrieval this cycle (CloudFront geo-block), so pull the MAD Behavioral Health Policy and Billing Manual and Supplement 24-13 from the HCA ABA provider page by hand, or ask the MAD ABA Manager.

NMAC 8.321.2.13 contains no telehealth or telemedicine provision for ABA, and the shared Turquoise Care Behavioral Health Level of Care Guidelines set none for ABA Stage 3 either — so no statewide per-code telehealth rule could be verified for the ABA benefit.^[1][14]

Ask the plan: MAD Behavioral Health Policy and Billing Manual (ABA billing instructions) and the NM Medicaid telehealth policy — hca.nm.gov blocked automated retrieval this cycle (CloudFront geo-block), so pull the MAD Behavioral Health Policy and Billing Manual and Supplement 24-13 from the HCA ABA provider page by hand, or ask the MAD ABA Manager.

All stage-three services require clinical management, and where a behavior analyst assistant (BCaBA) or behavior technician implements the treatment plan, that person requires case supervision from their BA or supervising BAA. NMAC turns the ratio into an authorization trigger: the prior authorization request must state the hours of case supervision requested per week if more than two hours of supervision per 10 hours of intervention is sought, and likewise for clinical management above two hours per 10. Per the guide’s reading of Supplement 24-13 the billable floor runs the other way too — at least four 15-minute units (one hour) of 97155, rendered by the BA, Mentored BA or supervising BCaBA with the recipient present, for every eighty units (20 hours) of combined 97153/97154/97156, roughly a 5% direct-observation floor, plus one to two units of T1026 UD clinical management per eighty units of stage-three service. Supervision required only to maintain BACB or BICC certification is explicitly not reimbursable by MAD.^[1][2]

MAD publishes no per-day unit ceiling for ABA. The limits that bite are authorization-gated intensity thresholds, and one of them inverts the usual logic: per the guide’s reading of Supplement 24-13 (3.17.1(A)), comprehensive treatment rendered at LESS than 20 hours a week on average requires prior authorization from the MCO or the third-party assessor — scrutiny lands on under-dosed programmes rather than high-hour ones. Contemplated bands are 30–40 hours a week for comprehensive, 10–25 for focused, and 10–40 for adult comprehensive services. Requests above two hours of case supervision, or two hours of clinical management, per 10 hours of stage-three intervention also require PA, and the PA request must document hours allocated to other services in the ISP so the UR contractor can judge whether the requested intensity is feasible.^[1][2]

NMAC sets the boundaries by exclusion and by setting. Not covered: activities that take place in school settings and have the potential to supplant educational services. Residential and institutional settings are handled explicitly — where a recipient is in a residential facility that is not itself an enrolled ABA provider, the facility must locate a MAD-enrolled stage two and three ABA provider and agree terms allowing that provider to render services on site. Treatment foster care is not treated as a residential facility, so ABA may be delivered outside the TFC agency; a recipient in a residential treatment centre, accredited residential treatment centre or group home may receive ABA to the extent the residential provider can deliver it. The shared Turquoise Care Level of Care Guidelines add that out-of-home placement is otherwise an exclusion, apart from time-limited ABA authorized for transition back to a community provider.^[1][14]

Reimbursement for ABA stage two and three services is made to the MAD-enrolled ABA provider, never to a residential facility hosting the service. Practitioners enrol by type: behavior analysts (BCBA or BCBA-D, or an ABPP behavior-and-cognitive-psychology psychologist tested in the ABA component) as Provider Type 445, Specialty 099 on the MAD-877 attestation, and technicians as Provider Type 430, Specialty 098 on the MAD-878 — with any change in certification status reported immediately to the agency, the MAD ABA Manager and each contracted MCO. Every provider and practitioner must successfully complete a New Mexico criminal background registry check before rendering. Under Letter of Direction #53 the Turquoise Care MCOs, and their sub-vendors, must pay no less than the Medicaid fee-for-service ABA fee schedule.^[1][6][7][3]

Not resolved in the rule text. NMAC 8.321.2.13 publishes no same-clock-time billing rule for ABA, and it defers billing instructions to the MAD Behavioral Health Policy and Billing Manual. What is clear is that the model assumes concurrent delivery: the 97155 observation floor is expressed as units rendered with the recipient present against units of 97153/97154/97156, which is supervision alongside direct service. Whether both are payable for the same clock minutes still needs the billing manual.^[1][2]

Blocked on: MAD Behavioral Health Policy and Billing Manual, ABA billing instructions — hca.nm.gov blocked automated retrieval this cycle (CloudFront geo-block), so pull the MAD Behavioral Health Policy and Billing Manual and Supplement 24-13 from the HCA ABA provider page by hand, or ask the MAD ABA Manager.

NMAC assigns responsibility but not signature mechanics: the supervising behavior analyst is responsible for the recipient’s assessment, the selection and measurement of goals, and treatment plan formulation and documentation, and the rule then defers to the MAD Behavioral Health Policy and Billing Manual for documentation detail. Who must sign a session note, and within what window, is not stated in the rule.^[1]

Blocked on: MAD Behavioral Health Policy and Billing Manual (ABA documentation requirements) — hca.nm.gov blocked automated retrieval this cycle (CloudFront geo-block), so pull the MAD Behavioral Health Policy and Billing Manual and Supplement 24-13 from the HCA ABA provider page by hand, or ask the MAD ABA Manager.