ICD-10 · PDGM grouping
A69 Other spirochetal infections
All 9 codes in the A69 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
9
Can lead a claim
9
Cannot lead a claim
0
What CMS assigns to A69
All 9 codes group to MMTA - Infectious Disease, Neoplasms, and Blood-Forming Diseases (8) and Neuro Rehabilitation (1). None of the 9 is assigned a comorbidity subgroup. Every code can lead a claim.
Every code in A69
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 |
|---|---|---|---|---|
| A69.0 | Necrotizing ulcerative stomatitis | Can lead a claim | K | None |
| A69.1 | Other Vincent's infections | Can lead a claim | K | None |
| A69.2 Lyme disease | ||||
| A69.20 | Lyme disease, unspecified | Can lead a claim | K | None |
| A69.21 | Meningitis due to Lyme disease | Can lead a claim | B | None |
| A69.22 | Other neurologic disorders in Lyme disease | Can lead a claim | K | None |
| A69.23 | Arthritis due to Lyme disease | Can lead a claim | K | None |
| A69.29 | Other conditions associated with Lyme disease | Can lead a claim | K | None |
| A69.8 | Other specified spirochetal infections | Can lead a claim | K | None |
| A69.9 | Spirochetal infection, unspecified | Can lead a claim | K | 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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