FY2027 ICD-10-CM reference
E80: Disorders of porphyrin and bilirubin metabolism
By the HCC Buddy Coding Team
The official ICD-10-CM descriptor is Disorders of porphyrin and bilirubin metabolism. The FY2027 annual edition starts October 1, 2026. Check the edition that applies to the encounter or inpatient discharge, including any April update.
Nonbillable heading. Verified against the official FY2027 order file.
More specific FY2027 codes
- E80.0: Hereditary erythropoietic porphyriaBillable code
- E80.1: Porphyria cutanea tardaBillable code
- E80.2: Other and unspecified porphyriaNonbillable heading
- E80.3: Defects of catalase and peroxidaseBillable code
- E80.4: Gilbert syndromeBillable code
- E80.5: Crigler-Najjar syndromeBillable code
- E80.6: Other disorders of bilirubin metabolismBillable code
- E80.7: Disorder of bilirubin metabolism, unspecifiedBillable code
FY2027 Tabular instructions
Instructions below include applicable chapter, section and parent-code notes. Each note identifies where it appears in the official source.
Instructional note
All neoplasms, whether functionally active or not, are classified in Chapter 2. Appropriate codes in this chapter (i.e. E05.8, E07.0, E16-E31, E34.-) may be used as additional codes to indicate either functional activity by neoplasms and ectopic endocrine tissue or hyperfunction and hypofunction of endocrine glands associated with neoplasms and other conditions classified elsewhere.
Source: E00-E89 (chapter, inherited).
Excludes1
transitory endocrine and metabolic disorders specific to newborn (P70-P74)
Source: E00-E89 (chapter, inherited).
Excludes1
androgen insensitivity syndrome (E34.5-)
Source: E70-E88 (section, inherited).
Excludes1
congenital adrenal hyperplasia (E25.0)
Source: E70-E88 (section, inherited).
Excludes1
hemolytic anemias attributable to enzyme disorders (D55.-)
Source: E70-E88 (section, inherited).
Excludes1
Marfan syndrome (Q87.4-)
Source: E70-E88 (section, inherited).
Excludes1
5-alpha-reductase deficiency (E29.1)
Source: E70-E88 (section, inherited).
Excludes2
Ehlers-Danlos syndromes (Q79.6-)
Source: E70-E88 (section, inherited).
Includes
defects of catalase and peroxidase
Source: E80 (category, direct).
Compare the FY2027 additions, removals and billable-status changes
What does E80 mean in FY2027?
The official ICD-10-CM descriptor is Disorders of porphyrin and bilirubin metabolism. The FY2027 annual edition starts October 1, 2026. Check the edition that applies to the encounter or inpatient discharge, including any April update.
Is E80 billable in FY2027?
The FY2027 order file marks E80 as a nonbillable heading. Select a complete billable child code.
Does E80 map to an HCC?
Risk-model mapping is not applicable to this nonbillable heading. Check a complete billable child code.
Source: CMS FY2027 ICD-10-CM order file. Payment model: CMS CY 2027 Rate Announcement. Read the FY2027 Official Guidelines.
Review the FY2026 April edition