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

J03 Acute tonsillitis

All 6 codes in the J03 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

6

Can lead a claim

6

Cannot lead a claim

0

What CMS assigns to J03

All 6 codes group to MMTA - Other. None of the 6 is assigned a comorbidity subgroup. Every code can lead a claim.

Every code in J03

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

CodeDescriptionPrimary positionClinical groupComorbidity subgroup
J03.0 Streptococcal tonsillitis
J03.00Acute streptococcal tonsillitis, unspecifiedCan lead a claimANone
J03.01Acute recurrent streptococcal tonsillitisCan lead a claimANone
J03.8 Acute tonsillitis due to other specified organisms
J03.80Acute tonsillitis due to other specified organismsCan lead a claimANone
J03.81Acute recurrent tonsillitis due to other specified organismsCan lead a claimANone
J03.9 Acute tonsillitis, unspecified
J03.90Acute tonsillitis, unspecifiedCan lead a claimANone
J03.91Acute recurrent tonsillitis, unspecifiedCan lead a claimANone

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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