October 1 update. Our PDGM and ICD-10 tools now use the FY2027 code set: 190 codes added, 30 deleted, and no existing code changed clinical group.

See what changed

ICD-10 · PDGM grouping

T16 Foreign body in ear

All 9 codes in the T16 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.

ICD-10-CM FY2027 · CMS grouper v07.2.26

Codes in family

9

Can lead a claim

6

Cannot lead a claim

3

What CMS assigns to T16

6 of the 9 codes group to MMTA - Other; 3 are assigned no clinical group. None of the 9 is assigned a comorbidity subgroup. 6 of the 9 can lead a claim.

Every code in T16

Descriptions are CDC’s FY2027 wording; where CMS’s grouper abbreviates one, its form is shown beneath.

CodeDescriptionPrimary positionClinical groupComorbidity subgroup
T16.1 Foreign body in right ear
T16.1XXAForeign body in right ear, initial encounterCan lead a claimANone
T16.1XXDForeign body in right ear, subsequent encounterCan lead a claimANone
T16.1XXSForeign body in right ear, sequelaCan lead a claimANone
T16.2 Foreign body in left ear
T16.2XXAForeign body in left ear, initial encounterCan lead a claimANone
T16.2XXDForeign body in left ear, subsequent encounterCan lead a claimANone
T16.2XXSForeign body in left ear, sequelaCan lead a claimANone
T16.9 Foreign body in ear, unspecified ear
T16.9XXAForeign body in ear, unspecified ear, initial encounterCannot lead a claimPrincipal diagnosis not assigned to a clinical groupNoneNone
T16.9XXDForeign body in ear, unspecified ear, subsequent encounterCannot lead a claimPrincipal diagnosis not assigned to a clinical groupNoneNone
T16.9XXSForeign body in ear, unspecified ear, sequelaCannot lead a claimPrincipal diagnosis not assigned to a clinical groupNoneNone

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