Chiropractic insurance billing in New Mexico.

Medicare’s chiropractic rules are federal — the same in every state. Medicare Part B covers ONLY manual manipulation of the spine to correct a subluxation (CPT 98940–98942), and ONLY when the care is active or corrective — which you signal with the AT modifier. Maintenance care, exams, X-rays, and any therapies performed by a chiropractor are not covered, so a properly executed ABN is essential before non-covered services. The full federal rules are in our chiropractic Medicare billing guide.

Part B claims in New Mexico are processed by Novitas Solutions (JH) — its Local Coverage Determination and documentation expectations (and its audits of the AT modifier and medical necessity) are the ones your New Mexico claims are measured against.

A New Mexico chiropractic or multi-specialty practice spends most of its commercial billing day with: Blue Cross and Blue Shield of New Mexico (HCSC); Presbyterian Health Plan; Molina Healthcare of New Mexico; UnitedHealthcare Community Plan of New Mexico;

Cigna; Western Sky Community Care (Centene). Each has its own claim portal, fee schedule, and chiropractic medical-policy quirks.

Chiropractic and physical-medicine benefits in New Mexico are frequently DELEGATED to specialty network managers, which changes where claims, prior authorizations, and medical-necessity reviews go – not to the parent insurer. The two dominant delegated managers are:

• American Specialty Health (ASH / ASHLink) – the national chiropractic/acupuncture/PT network manager used by carriers such as Cigna (Cigna/ASH medical coverage policies and chiropractic claims), and historically Aetna and Anthem/Blue plans in various markets; ASH processes claims and runs medical-necessity review with its own clinical guidelines.
• Optum Physical Health (formerly OptumHealth Physical Health / ACN) – UnitedHealthcare’s chiropractic/PT network and clinical-submission manager, applicable to UHC commercial and many UHC Medicare Advantage members; Optum also administers physical-health utilization for some other plans. eviCore by Evernorth handles some musculoskeletal/PT utilization-management for certain plans (e.g., some BCBSNM Medicare lines). Delegation in New Mexico is plan- and product-specific and changes over time, so verify per member: confirm on the eligibility/benefits response or member ID card whether chiropractic routes to ASH, Optum Physical Health, eviCore, or the plan directly BEFORE submitting claims or auth requests. ACTION: always re-verify the current delegated vendor for each specific NM plan/product at the point of service.

What trips up chiropractic billing in New Mexico:

• New Mexico has a strong statutory chiropractic mandate – the Open Access to Chiropractic Care Act (NMSA 59A-58) lets covered members under managed-care plans see the chiropractor of their choice, and cost-sharing parity laws (NMSA 59A-22-59, 59A-46-59) bar chiropractic copay/coinsurance from exceeding the plan’s primary-care cost-share.
• Despite the mandate, plans still impose VISIT CAPS and dollar limits – e.g., some BCBSNM products cap ‘alternative therapy’ (chiropractic + acupuncture combined) at a set dollar amount per year (historically around $1,500/year on certain EPO products) – so verify the specific benefit, not just that chiro is ‘covered.’
• Medical-necessity and treatment-plan rules are the main denial driver: when chiropractic is delegated to ASH, ASH commonly reimburses an initial set of visits (e.g., the first 5 office visits per calendar year) without a medical-necessity review form, then requires a documented treatment plan / medical-necessity review (submitted via ASHLink, generally within 180 days of the first date requiring review) for continued care; Optum Physical Health requires analogous clinical submissions and re-evaluations.
• Modifier discipline matters – chiropractic manipulative treatment (CMT 98940-98943) bundles the pre-manipulation E/M, so a separately reported E/M typically needs modifier 25 with clear documentation, and active-treatment/therapy codes may need the AT modifier for Medicare and GP/therapy modifiers where required.
• Maintenance care is generally non-covered (especially Medicare, where only active/corrective treatment with the AT modifier is payable).
• For New Mexico Medicaid, chiropractic became covered only as of Oct 1, 2024 (HCA Supplement 24-18) – confirm member eligibility and the MCO’s coverage/auth rules, as managed-care implementation varies by Turquoise Care MCO. ACTION: pull plan-specific benefits, identify the delegated vendor, file within the shortest applicable window, and document medical necessity/treatment plans early.

Largely contract/payer-set rather than fixed by New Mexico law: most commercial/private payers in New Mexico require the INITIAL clean claim within roughly 90 to 180 days of the date of service (confirm the exact window in each provider agreement/payer manual, as it varies by plan and product).

New Mexico’s prompt-pay/clean-claim rules govern how fast the PLAN must pay once it receives a clean claim (generally 30 days for electronic and 45 days for paper clean claims, with 1.5%/month interest on overdue clean claims under N.M.

Admin. Code 13.10.28 and the Insurance Code), but they do NOT set the provider’s submission deadline. Bottom line: there is no single statutory commercial filing limit in New Mexico, so file per the contract and the common 90-180 day norm, and confirm per payer.

Federal limit: claims must be filed no later than 12 months (one calendar year) from the date of service, or Medicare denies them. This is set by federal regulation (42 CFR 424.44) and applies to traditional/Original Medicare in New Mexico the same as everywhere.

Note: Medicare Advantage (Part C) plans set their own, often shorter, contractual filing windows (commonly 90-365 days) – confirm per plan.

New Mexico Medicaid (Turquoise Care) fee-for-service timely-filing limit is generally 90 calendar days from the date of service for an initial claim. When another payer is primary (Medicare, an MCO, or other insurer), the claim must be received within 90 calendar days of the date the other payer paid or denied it, not to exceed 210 calendar days from the date of service; a one-time 90-day grace period to resubmit runs from the remittance/denial date.

Basis: N.M. Admin. Code 8.302.2.11 (Billing and Claims Filing Limitations). IMPORTANT: under Turquoise Care, each Medicaid managed-care organization (BCBSNM, Presbyterian, and the program’s other MCOs) sets its own filing window in its provider manual (commonly 90-120 days) – confirm per MCO.

Chiropractic services became a covered New Mexico Medicaid benefit effective Oct 1, 2024 (HCA Supplement 24-18).

New Mexico Workers’ Compensation requires the health care provider to SUBMIT the initial bill no later than 60 days from the date services were rendered (outpatient) or 60 days from the date of discharge (inpatient), under N.M. Admin.

Code 11.4.7.8 (Ground Rules for Billing and Payment). The payer must then make timely good-faith payment within 30 days of receiving the bill unless it properly contests the bill with an explanation of benefits. (Separate from billing: the injured worker must give the employer notice of injury within 15 days, and the WC claim statute of limitations is governed by NMSA 52-1-31 – not a billing rule.)

New Mexico is an at-fault (tort) state and does NOT have no-fault PIP; optional first-party coverage is Medical Payments (MedPay), typically $5,000-$10,000. There is no fixed New Mexico statute setting a hard medical-bill submission deadline to a MedPay or auto liability carrier – the practical deadline is contractual (the policy’s ‘proof of loss’/notice provisions, often requiring prompt or ‘as soon as practicable’ submission).

Practically, bill MedPay promptly (within the policy terms) and confirm the carrier’s requirement; the broader injury lawsuit statute of limitations is 3 years (NMSA 37-1-8), which is a litigation deadline, not a billing deadline.

Confirm per policy.