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Educational overview

Understanding ASAM levels of care in New Mexico behavioral-health operations.

ASAM placement is a clinical determination. This page explains how level-of-care language relates to the billing questions that follow it.

What New Mexico Billing does and does not do

ASAM placement is a clinical determination made by qualified clinical professionals. New Mexico Billing does not assess, diagnose, place patients, determine medical necessity, or authorize services. We support billing operations and claim workflow only, and we are not an ASAM authority.

Educational overview of ASAM levels of care

  • 0.5Early intervention
  • 1Outpatient services
  • 2.1Intensive outpatient services
  • 2.5Partial hospitalization services
  • 3.1Clinically managed low-intensity residential services
  • 3.3Clinically managed population-specific high-intensity residential services
  • 3.5Clinically managed high-intensity residential services
  • 3.7Medically monitored high-intensity inpatient services
  • 4Medically managed intensive inpatient services

Level names are summarized for orientation only. Refer to the current ASAM criteria publication and payer policy for definitions and requirements.

Important limits on level-of-care language

  • ASAM terminology does not automatically determine a billable code.
  • A diagnosis alone does not establish a level of care.
  • A level of care does not guarantee authorization or payment.
  • Service code, provider type, program approval, authorization, treatment plan, documentation, payer policy, and eligibility must align.
  • Providers should not select a higher level of care merely to increase reimbursement.
  • Payers may apply ASAM criteria, state rules, utilization-management criteria, and plan-specific rules differently.

New Mexico SUD IOP and ASAM 2.1

New Mexico SUD IOP requirements commonly reference ASAM Level 2.1 placement criteria for eligible recipients. This does not mean every patient with a substance-use diagnosis qualifies for IOP or that every H0015/S9480 claim is payable.

Clinical concepts and the billing questions that follow

Clinical concepts mapped to billing operations questions
Clinical conceptBilling operations question
ASAM placementDoes the clinical record support the level of care?
Treatment intensityDoes the documented service support the units and duration?
Program approvalIs the agency approved and enrolled for the service?
AuthorizationIs the service authorized for this patient, code, date, and units?
Provider eligibilityIs the rendering provider eligible and correctly rostered?
Claim submissionAre the payer, POS, modifier, NPI, and code combination correct?

Sources and verification

  • ASAM criteria publications — Refer to the current edition. New Mexico Billing is not affiliated with ASAM and is not an ASAM authority.
  • New Mexico Health Care Authority behavioral-health guidance — State requirements referencing level-of-care criteria should be verified in current published materials.
  • MCO provider manuals and utilization-management policies — Plans may apply criteria differently; confirm with each payer.

Requirements, manuals, and payer policies may change; confirm the current version before relying on any source. Listed sources do not endorse New Mexico Billing.

Information on this website is educational and operational in nature. New Mexico rules, Medicaid manuals, payer policies, authorization requirements, and ASAM guidance may change. This website is not legal, clinical, coding, compliance, or payer-contracting advice.

Last reviewed: September 2026

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