New Mexico Claims Dispute & Statutory Guide
New Mexico operates an At-Fault automobile insurance framework under Chapter 59A and Chapter 66 of the New Mexico Statutes Annotated (NMSA 1978). The state enforces pure comparative negligence under Scott v. Rizzo. Medical providers bill optional first-party Medical Payments (MedPay), subject to New Mexico's Made-Whole doctrine, and enforce statutory hospital liens under NMSA 1978, § 48-8-1.
Statutory Framework & Jurisdiction
At-Fault / Traditional Tort (Pure Comparative Fault & New Mexico Hospital Lien Act)
New Mexico is a traditional tort jurisdiction that does not mandate Personal Injury Protection (PIP) insurance. Motor vehicle crash medical expenses are funded through optional first-party Medical Payments (MedPay) coverage, private health insurance, or third-party automobile liability insurance. Under Scott v. Rizzo, liability is apportioned under pure comparative negligence principles. MedPay subrogation by auto insurers is subordinate to the Made-Whole doctrine under White v. Sutherland. Hospitals secure treatment receivables against third-party liability recoveries pursuant to the New Mexico Hospital Lien Act.
PIP / MedPay Coverage & Medical Fee Rules
optional Med Pay Coverage
MedPay is optional in New Mexico (commonly written in limits of $1,000 to $10,000+ per person), providing no-fault reimbursement for reasonable medical, surgical, dental, hospital, and ambulance expenses incurred as a result of an automobile collision
made Whole Doctrine
Under New Mexico common law (White v. Sutherland; Amica Mutual Ins. Co. v. Maloney), an insurer's contractual subrogation right cannot be enforced until the insured has been fully compensated for all economic and non-economic losses
assignment Of Benefits
Healthcare providers routinely obtain patient assignments of MedPay benefits for direct claims submission to automobile insurers
Official Medical Fee Schedule & Reimbursement Standards
name
Reasonable and Customary Fee Standard
rules
New Mexico does not enforce a statutory fee schedule table for motor vehicle accident medical bills outside of workers' compensation. Providers bill standard reasonable and customary charges prevailing in the local medical community for comparable care.
cpt Basis
CPT/HCPCS itemized coding on standard CMS-1500 or UB-04 billing claims
Preauthorization & Decision Point Review
requirement
Preauthorization is not required by statute for emergency trauma care or initial acute stabilization. Elective surgical procedures and prolonged physical therapy regimens are evaluated under insurer medical necessity guidelines.
carrier Examinations
Under standard auto policy terms, insurers may request medical records or independent physician reviews to evaluate causal relationship to the collision.
Administrative Appeals & Dispute Mechanism
prompt Payment Statute
Under NMSA 1978, § 59A-16-21.1, insurers must pay clean medical claims within 30 calendar days for electronic claims (45 calendar days for paper claims). Claims not paid within these timeframes accrue interest at the rate of 1.5% per month.
hospital Lien Act
Under the New Mexico Hospital Lien Act (NMSA 1978, § 48-8-1 et seq.), every hospital in New Mexico has a statutory lien upon all claims, settlements, and judgments of an injured person for reasonable hospital charges. To perfect the lien, the hospital must file a verified notice of claim of lien in the office of the county clerk within 90 days after discharge, and mail a copy to the injured person and the liability insurer.
dispute Forum
New Mexico District Court (or Magistrate Court for small claims within jurisdictional limits) for civil recovery actions.
Critical Statutory & Dispute Deadlines
| Dispute Phase / Trigger Event | Statutory Timeline / Deadline |
|---|---|
| Accident Notice | Notice to insurer as soon as reasonably practicable |
| MedPay Claim Submission | Submission within standard policy billing deadlines (typically 1 to 3 years) |
| Clean Claim Payment Window | 30 calendar days for electronic claims; 45 days for paper claims (NMSA 1978, § 59A-16-21.1) |
| Hospital Lien Perfection | Must be filed with county clerk within 90 days of discharge (NMSA 1978, § 48-8-2) |
| Statute of Limitations | 3 years from accident date for personal injury tort claims (NMSA 1978, § 37-1-8); 6 years for written contracts |
Required Evidentiary Filing Checklist
- ✓New Mexico MedPay Claim Application Form
- ✓Executed Assignment of Benefits (AOB) and medical records authorization
- ✓Itemized CMS-1500 or UB-04 billing form with CPT/HCPCS codes and ICD-10 diagnostic coding
- ✓Contemporaneous medical records, emergency intake documentation, operative reports, and imaging findings
- ✓Recorded Notice of Hospital Lien with county clerk recording stamp (NMSA 1978, § 48-8-2)
- ✓Insurer Explanation of Benefits (EOB) or written explanation of claim determination
Official Primary Sources & Legislative Authorities
Governing Regulatory Authorities
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