ICD-10 · PDGM grouping
E80 Disorders of porphyrin and bilirubin metabolism
All 10 codes in the E80 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
10
Can lead a claim
10
Cannot lead a claim
0
What CMS assigns to E80
All 10 codes group to MMTA - Other. None of the 10 is assigned a comorbidity subgroup. Every code can lead a claim.
Every code in E80
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 |
|---|---|---|---|---|
| E80.0 | Hereditary erythropoietic porphyria | Can lead a claim | A | None |
| E80.1 | Porphyria cutanea tarda | Can lead a claim | A | None |
| E80.2 Other and unspecified porphyria | ||||
| E80.20 | Unspecified porphyria | Can lead a claim | A | None |
| E80.21 | Acute intermittent (hepatic) porphyria | Can lead a claim | A | None |
| E80.29 | Other porphyria | Can lead a claim | A | None |
| E80.3 | Defects of catalase and peroxidase | Can lead a claim | A | None |
| E80.4 | Gilbert syndrome | Can lead a claim | A | None |
| E80.5 | Crigler-Najjar syndrome | Can lead a claim | A | None |
| E80.6 | Other disorders of bilirubin metabolism | Can lead a claim | A | None |
| E80.7 | Disorder of bilirubin metabolism, unspecified | Can lead a claim | A | 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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