ICD-10 · PDGM grouping
K00 Disorders of tooth development and eruption
All 10 codes in the K00 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
10
Can lead a claim
0
Cannot lead a claim
10
What CMS assigns to K00
None of the 10 codes is assigned a clinical group. None of the 10 is assigned a comorbidity subgroup. None can lead a claim.
Every code in K00
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 |
|---|---|---|---|---|
| K00.0 | Anodontia | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| K00.1 | Supernumerary teeth | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| K00.2 | Abnormalities of size and form of teeth | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| K00.3 | Mottled teeth | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| K00.4 | Disturbances in tooth formation | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| K00.5 | Hereditary disturbances in tooth structure, not elsewhere classifiedCMS: Hereditary disturbances in tooth structure, NEC | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| K00.6 | Disturbances in tooth eruption | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| K00.7 | Teething syndrome | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| K00.8 | Other disorders of tooth development | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| K00.9 | Disorder of tooth development, unspecified | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
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.
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