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

G54 Nerve root and plexus disorders

All 10 codes in the G54 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

10

Can lead a claim

9

Cannot lead a claim

1

What CMS assigns to G54

9 of the 10 codes group to Neuro Rehabilitation; 1 is assigned no clinical group. None of the 10 is assigned a comorbidity subgroup. 9 of the 10 can lead a claim.

Every code in G54

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

CodeDescriptionPrimary positionClinical groupComorbidity subgroup
G54.0Brachial plexus disordersCan lead a claimBNone
G54.1Lumbosacral plexus disordersCan lead a claimBNone
G54.2Cervical root disorders, not elsewhere classifiedCan lead a claimBNone
G54.3Thoracic root disorders, not elsewhere classifiedCan lead a claimBNone
G54.4Lumbosacral root disorders, not elsewhere classifiedCan lead a claimBNone
G54.5Neuralgic amyotrophyCan lead a claimBNone
G54.6Phantom limb syndrome with painCan lead a claimBNone
G54.7Phantom limb syndrome without painCan lead a claimBNone
G54.8Other nerve root and plexus disordersCan lead a claimBNone
G54.9Nerve root and plexus disorder, unspecifiedCannot 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.

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