# ICD-9-CM, Volumes 1 and 2 — Superseded and deprecated identifier mappings

For ICD-9-CM, Volumes 1 and 2, successor is ICD-10-CM, verified against its source on 2026-08-05.

- **Identifier:** ICD-9-CM, Volumes 1 and 2
- **Successor:** ICD-10-CM

## What the source says

> These files contain information on the new diagnosis coding system, ICD-10-CM, that's a replacement for ICD-9-CM, Volumes 1 and 2.

## Source

- https://www.cms.gov/medicare/coding-billing/icd-10-codes/icd-10-cm-icd-10-pcs-gem-archive

Last verified: 2026-08-05. Review by: 2027-02-01.
Part of [Superseded and deprecated identifier mappings](https://referencesource.org/superseded-standards-mappings/).