E80.21
Billable codeAcute intermittent (hepatic) porphyria
The ICD-10 code for acute intermittent (hepatic) porphyria is E80.21.
Documentation support
General coding-documentation guidance — not a substitute for payer-specific requirements or professional coding judgment.
- •As a general rule, code to the highest level of specificity supported by the documentation in the medical record.
Related codes in this category
- E80.20Unspecified porphyria
- E80.29Other porphyria
- E80.21Acute intermittent (hepatic) porphyria
ICD-9-CM equivalent
Informational only — GEM mappings are approximate, not guaranteed one-to-one equivalents. Verify before use in billing.
- 2771Approximate match
Associated MS-DRGs
E80.21 can serve as the principal diagnosis for these Medicare Severity Diagnosis-Related Groups.
Informational only — actual DRG assignment also depends on procedures, complications/comorbidities (CC/MCC), discharge status, and payer-specific rules not reflected here.