ICD-10 · PDGM grouping
C02 Malignant neoplasm of other and unspecified parts of tongue
All 7 codes in the C02 family, with the PDGM clinical group, comorbidity subgroup and primary-position rule CMS assigns, read from the CMS grouper crosswalk v07.2.26 and the CDC FY2027 code file.
Codes in family
7
Can lead a claim
7
Cannot lead a claim
0
What CMS assigns to C02
All 7 codes group to MMTA - Infectious Disease, Neoplasms, and Blood-Forming Diseases. All 7 count toward the Malignant neoplasm of Lip, Oral cavity and Pharynx, includes Head and Neck Cancers comorbidity subgroup. Every code can lead a claim.
- Malignant neoplasm of Lip, Oral cavity and Pharynx, includes Head and Neck Cancers
Every code in C02
Descriptions are CDC’s FY2027 wording; where CMS’s grouper abbreviates one, its form is shown beneath.
| Code | Description | Primary position | Clinical group | Comorbidity subgroup |
|---|---|---|---|---|
| C02.0 | Malignant neoplasm of dorsal surface of tongue | Can lead a claim | K | Malignant neoplasm of Lip, Oral cavity and Pharynx, includes Head and Neck Cancers |
| C02.1 | Malignant neoplasm of border of tongue | Can lead a claim | K | Malignant neoplasm of Lip, Oral cavity and Pharynx, includes Head and Neck Cancers |
| C02.2 | Malignant neoplasm of ventral surface of tongue | Can lead a claim | K | Malignant neoplasm of Lip, Oral cavity and Pharynx, includes Head and Neck Cancers |
| C02.3 | Malignant neoplasm of anterior two-thirds of tongue, part unspecifiedCMS: Malig neoplasm of anterior two-thirds of tongue, part unsp | Can lead a claim | K | Malignant neoplasm of Lip, Oral cavity and Pharynx, includes Head and Neck Cancers |
| C02.4 | Malignant neoplasm of lingual tonsil | Can lead a claim | K | Malignant neoplasm of Lip, Oral cavity and Pharynx, includes Head and Neck Cancers |
| C02.8 | Malignant neoplasm of overlapping sites of tongue | Can lead a claim | K | Malignant neoplasm of Lip, Oral cavity and Pharynx, includes Head and Neck Cancers |
| C02.9 | Malignant neoplasm of tongue, unspecified | Can lead a claim | K | Malignant neoplasm of Lip, Oral cavity and Pharynx, includes Head and Neck Cancers |
Sources: CMS HH PPS Grouper Software v07.2.26, effective 2026-10-01, for the clinical group, comorbidity subgroup, code-first conventions and primary-position flags; CDC NCHS ICD-10-CM FY2027 code descriptions for the family title and code wording. This is the crosswalk Medicare runs a claim through. Grouping also depends on admission source, timing, the OASIS functional items and the rest of the diagnosis list.
The monthly home health regs digest
What CMS changed, what's due next, and what to do about it — one email a month, no fluff. Read the first issue