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

A65-A69 — Other spirochetal diseases

Every ICD-10-CM code in this range and the PDGM clinical group CMS assigns to it, read from the CMS grouper crosswalk v07.2.26.

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

Codes in range

28

No clinical group

0

A period cannot be grouped from these.

Barred as primary

0

CMS rejects these in the primary position.

Where these codes group

27 of the 28 codes in A65-A69 group to MMTA - Infectious Disease, Neoplasms, and Blood-Forming Diseases, but the range is not uniform — it spreads across 2 clinical groups. Every code here is assigned a group.

Code families in A65-A69

One page per three-character family: every code in it, whether it can lead a claim, its clinical group and comorbidity subgroup.

Every code in A65-A69

Descriptions are CMS’s own, abbreviated as CMS abbreviates them.

CodeDescriptionClinical groupPrimary position
A65Nonvenereal syphilisKCan lead a claim
A660Initial lesions of yawsKCan lead a claim
A661Multiple papillomata and wet crab yawsKCan lead a claim
A662Other early skin lesions of yawsKCan lead a claim
A663Hyperkeratosis of yawsKCan lead a claim
A664Gummata and ulcers of yawsKCan lead a claim
A665GangosaKCan lead a claim
A666Bone and joint lesions of yawsKCan lead a claim
A667Other manifestations of yawsKCan lead a claim
A668Latent yawsKCan lead a claim
A669Yaws, unspecifiedKCan lead a claim
A670Primary lesions of pintaKCan lead a claim
A671Intermediate lesions of pintaKCan lead a claim
A672Late lesions of pintaKCan lead a claim
A673Mixed lesions of pintaKCan lead a claim
A679Pinta, unspecifiedKCan lead a claim
A680Louse-borne relapsing feverKCan lead a claim
A681Tick-borne relapsing feverKCan lead a claim
A689Relapsing fever, unspecifiedKCan lead a claim
A690Necrotizing ulcerative stomatitisKCan lead a claim
A691Other Vincent's infectionsKCan lead a claim
A6920Lyme disease, unspecifiedKCan lead a claim
A6921Meningitis due to Lyme diseaseBCan lead a claim
A6922Other neurologic disorders in Lyme diseaseKCan lead a claim
A6923Arthritis due to Lyme diseaseKCan lead a claim
A6929Other conditions associated with Lyme diseaseKCan lead a claim
A698Other specified spirochetal infectionsKCan lead a claim
A699Spirochetal infection, unspecifiedKCan lead a claim

Source: CMS HH PPS Grouper Software v07.2.26, effective 2026-10-01. 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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