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HCPCS Level II/M-Codes/M1478

M1478 HCPCS Level II Code: Psychoactive substance abuse

M1478 is the authoritative medical code for Psychoactive substance abuse. This classification is used in medical billing and clinical recording to specify the clinical criteria for psychoactive substance abuse (HCPCS Level II M1478), ensuring healthcare documentation aligns with current federal coding standards.

Billing Status: Processed within HCPCS Level II standards. CMS regulatory guidelines apply.

Medicare Coverage & Payment

  • Medicare coverage: Carrier judgment (CMS coverage code C)
  • Payment category: Service not separately priced (pricing indicator 00)
  • BETOS: Z2
  • Effective: January 1, 2026

Source: CMS HCPCS Level II release. Coverage codes indicate how Medicare treats the code, not whether a specific claim will be paid; payer policy and documentation still govern.

Official Registry Overview & Definition

Psychoactive substance abuse is a HCPCS Level II code (M1478) for a Medicare-covered supply, service, or procedure. Short description: Psychoactive sub abuse.

Nearest Codes in This Family

Official HCPCS Level II classifications closest to M1478 in its code family, with their registry titles.

  • M1473 — Patient situations, at any point during the denominator identification period, where the patient's functional capacity or motivation (or lack thereof) to improve may impact the accuracy of results of validated tools, such as delirium, dementia, intellectual disabilities, and pervasive and specific development disorders
  • M1474 — Patients with diagnosis of dementia
  • M1475 — Patients with diagnosis of huntington's disease
  • M1476 — Patients with diagnosis of cognitive impairment or alzheimer's disease
  • M1477 — Diagnosis of delirium
  • M1479 — Patients whose functional capacity or motivation (or lack thereof) to improve may impact the accuracy of results of validated tools such as delirium, dementia, intellectual disabilities, and pervasive and specific development disorders
  • M1480 — Patients whose functional capacity or motivation (or lack thereof) to improve may impact the accuracy of results of validated tools such as delirium, dementia, intellectual disabilities, and pervasive and specific development disorders
  • M1481 — Patients receiving hospice or palliative care or who died during the measurement period
  • M1482 — Positive/detectable hepatitis c virus quantitative or qualitative rna test result during the denominator identification period
  • M1483 — Patients who achieve sustained virological response as identified by an hcv rna test (cpt 87522) or (cpt 87521) with a negative/undetectable hcv rna result that occurred 20 weeks to 12 months after the first positive/detectable hcv rna test result within the denominator identification period