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

G81 Hemiplegia and hemiparesis

All 15 codes in the G81 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

15

Can lead a claim

12

Cannot lead a claim

3

What CMS assigns to G81

12 of the 15 codes group to Neuro Rehabilitation; 3 are assigned no clinical group. 12 of the 15 count toward the Paraplegia, Hemiplegia and Quadriplegia comorbidity subgroup; 3 are assigned none. 12 of the 15 can lead a claim.

  • Paraplegia, Hemiplegia and Quadriplegia: can award the low comorbidity tier as a secondary diagnosis.

Every code in G81

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

CodeDescriptionPrimary positionClinical groupComorbidity subgroup
G81.0 Flaccid hemiplegia
G81.00Flaccid hemiplegia affecting unspecified sideCannot lead a claimUnspecified diagnosis code not acceptable as principal diagnosis since there is a more specific code available that would further accurately identify the conditionNoneNone
G81.01Flaccid hemiplegia affecting right dominant sideCan lead a claimBParaplegia, Hemiplegia and Quadriplegia
G81.02Flaccid hemiplegia affecting left dominant sideCan lead a claimBParaplegia, Hemiplegia and Quadriplegia
G81.03Flaccid hemiplegia affecting right nondominant sideCan lead a claimBParaplegia, Hemiplegia and Quadriplegia
G81.04Flaccid hemiplegia affecting left nondominant sideCan lead a claimBParaplegia, Hemiplegia and Quadriplegia
G81.1 Spastic hemiplegia
G81.10Spastic hemiplegia affecting unspecified sideCannot lead a claimUnspecified diagnosis code not acceptable as principal diagnosis since there is a more specific code available that would further accurately identify the conditionNoneNone
G81.11Spastic hemiplegia affecting right dominant sideCan lead a claimBParaplegia, Hemiplegia and Quadriplegia
G81.12Spastic hemiplegia affecting left dominant sideCan lead a claimBParaplegia, Hemiplegia and Quadriplegia
G81.13Spastic hemiplegia affecting right nondominant sideCan lead a claimBParaplegia, Hemiplegia and Quadriplegia
G81.14Spastic hemiplegia affecting left nondominant sideCan lead a claimBParaplegia, Hemiplegia and Quadriplegia
G81.9 Hemiplegia, unspecified
G81.90Hemiplegia, unspecified affecting unspecified sideCannot lead a claimUnspecified diagnosis code not acceptable as principal diagnosis since there is a more specific code available that would further accurately identify the conditionNoneNone
G81.91Hemiplegia, unspecified affecting right dominant sideCan lead a claimBParaplegia, Hemiplegia and Quadriplegia
G81.92Hemiplegia, unspecified affecting left dominant sideCan lead a claimBParaplegia, Hemiplegia and Quadriplegia
G81.93Hemiplegia, unspecified affecting right nondominant sideCan lead a claimBParaplegia, Hemiplegia and Quadriplegia
G81.94Hemiplegia, unspecified affecting left nondominant sideCan lead a claimBParaplegia, Hemiplegia and Quadriplegia

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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