E80.21Billable
Acute intermittent (hepatic) porphyria
- Chapter
- 4. Endocrine, nutritional and metabolic diseases
- Category
- E80
- Effective date
- October 1, 2026
Related codes in category E80
E80Disorders of porphyrin and bilirubin metabolismE80.0Hereditary erythropoietic porphyriaYesE80.1Porphyria cutanea tardaYesE80.2Other and unspecified porphyriaE80.20Unspecified porphyriaYesE80.29Other porphyriaYesE80.3Defects of catalase and peroxidaseYesE80.4Gilbert syndromeYesE80.5Crigler-Najjar syndromeYesE80.6Other disorders of bilirubin metabolismYesE80.7Disorder of bilirubin metabolism, unspecifiedYes
Frequently asked questions
What is ICD-10 code E80.21?
E80.21 is an ICD-10-CM diagnosis code for Acute intermittent (hepatic) porphyria.
Is E80.21 a billable code?
Yes. E80.21 is billable and specific enough to be used on a claim.
What ICD-10-CM chapter is E80.21 in?
E80.21 falls under Chapter 4: Endocrine, nutritional and metabolic diseases.
When did E80.21 become effective?
E80.21 has been effective since October 1, 2026, per the CMS/CDC ICD-10-CM annual release.
What other codes are related to E80.21?
E80.21 belongs to category E80, which includes 11 other codes — see the related codes list on this page.
ICD-10-CM data maintained by CDC/CMS (public domain). Always verify codes with authoritative sources before making coding or billing decisions.