ICD-10 · PDGM grouping
M27 Other diseases of jaws
All 16 codes in the M27 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
16
Can lead a claim
1
Cannot lead a claim
15
What CMS assigns to M27
1 of the 16 codes groups to MMTA - Other; 15 are assigned no clinical group. None of the 16 is assigned a comorbidity subgroup. 1 of the 16 can lead a claim.
Every code in M27
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 |
|---|---|---|---|---|
| M27.0 | Developmental disorders of jaws | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| M27.1 | Giant cell granuloma, central | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| M27.2 | Inflammatory conditions of jaws | Can lead a claim | A | None |
| M27.3 | Alveolitis of jaws | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| M27.4 Other and unspecified cysts of jaw | ||||
| M27.40 | Unspecified cyst of jaw | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| M27.49 | Other cysts of jaw | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| M27.5 Periradicular pathology associated with previous endodontic treatment | ||||
| M27.51 | Perforation of root canal space due to endodontic treatment | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| M27.52 | Endodontic overfill | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| M27.53 | Endodontic underfill | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| M27.59 | Other periradicular pathology associated with previous endodontic treatmentCMS: Oth periradicular pathology assoc w prev endodontic trtmt | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| M27.6 Endosseous dental implant failure | ||||
| M27.61 | Osseointegration failure of dental implant | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| M27.62 | Post-osseointegration biological failure of dental implant | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| M27.63 | Post-osseointegration mechanical failure of dental implant | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| M27.69 | Other endosseous dental implant failure | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| M27.8 | Other specified diseases of jaws | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| M27.9 | Disease of jaws, 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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