E80.4

ICD-10Billable

Gilbert syndrome

Official ICD-10-CM descriptor (FY2026)

Gilbert syndrome

E80.4 is valid for submission on a claim — CMS flags it as a billable, specific code.

Related codes in E80

E80.0Hereditary erythropoietic porphyria
E80.1Porphyria cutanea tarda
E80.2Other and unspecified porphyriacategory
E80.3Defects of catalase and peroxidase
E80.5Crigler-Najjar syndrome
E80.6Other disorders of bilirubin metabolism
E80.7Disorder of bilirubin metabolism, unspecified

Where this code sits

Chapter: 4. Endocrine, nutritional and metabolic diseases (E00-E89)
Block: Metabolic disorders (E70-E88)
Parent code: E80

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Source

ICD-10-CM FY2026. Centers for Medicare & Medicaid Services (CMS) / National Center for Health Statistics (NCHS), “2026 ICD-10-CM Code Descriptions in Tabular Order” (icd10cm_order_2026.txt). Download the original file from cms.gov. Public domain (US Government work). Descriptors, billable flags and instructional notes on this page are reproduced from that file without modification. Krasyn adds no clinical guidance.