ICD-10-CM 2027 diagnosis code
E83.110Hereditary hemochromatosis
E83.110 is a valid, billable ICD-10-CM code for hereditary hemochromatosis. It can be reported on claims for dates of service from October 1, 2026 – September 30, 2027.
Code unchanged since ICD-10-CM took effect on October 1, 2015. Source: official FY2027 ICD-10-CM release from CDC/NCHS and CMS. Page updated September 29, 2026. About our data
About E83.110
E83.110 is the ICD-10-CM diagnosis code for hereditary hemochromatosis. It belongs to category E83 (disorders of mineral metabolism), block E70-E88 (metabolic disorders) and chapter 4 (endocrine, nutritional and metabolic diseases). It is billable, so it can be reported on its own for dates of service from October 1, 2026 through September 30, 2027.
Within E83.11 (hemochromatosis), E83.110 is specifically for hereditary hemochromatosis. Related codes cover due to repeated red blood cell transfusions (E83.111), other hemochromatosis (E83.118) and unspecified (E83.119).
It is not a CC or MCC, so as a secondary diagnosis it doesn't change the MS-DRG severity level.
In MS-DRG v44.0, it is part of the grouping logic for DRG 642 (Inborn and Other Disorders of Metabolism, relative weight 1.3219), in MDC 10 (Endocrine, Nutritional and Metabolic Diseases and Disorders), as a principal or secondary diagnosis. The DRG a claim lands in depends on the principal diagnosis, procedures and any CC/MCC secondary diagnoses.
It has been part of ICD-10-CM since the code set took effect on October 1, 2015 and hasn't changed since.
Before ICD-10, this condition was coded in ICD-9-CM as 275.01 (hereditary hemochromatosis).
Coding notes
- Bronzed diabetes
- Pigmentary cirrhosis (of liver)
- Primary (hereditary) hemochromatosis
Notes that apply from higher levels
Instructions written at a parent level also apply to E83.110.
› From E83.11 Hemochromatosis
Broader instructions also apply from E70-E88 Metabolic disorders and Chapter 4: Endocrine, nutritional and metabolic diseases.
Alphabetic index entries
4 entriesTerms in the official ICD-10-CM index that lead to E83.110.
Codes whose notes reference E83.110
MS-DRG v44.0 grouping
All DRGs →Inpatient MS-DRGs this diagnosis can group to, as the principal or a secondary diagnosis, depending on the rest of the claim.
MDC 10 · Endocrine, Nutritional and Metabolic Diseases and Disorders
ICD-9-CM equivalent
Converter →- 275.01Hereditary hemochromatosisexact
From the CMS 2018 General Equivalence Mappings (GEMs), the final GEMs release.
Code history
- 2016
- 2017
- 2018
- 2019
- 2020
- 2021
- 2022
- 2023
- 2024
- 2025
- 2026
- 2027
- FY2016 (effective 10/1/2015): Added (first year of ICD-10-CM)
- No changes since FY2016.
Common questions about E83.110
Is E83.110 billable?
- Yes. E83.110 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).
Can E83.110 be used as a principal diagnosis?
- Yes. The Medicare Code Editor doesn't restrict E83.110 as a principal diagnosis.
Is E83.110 a CC or MCC?
- No. E83.110 is neither a CC nor an MCC under MS-DRG v44.0.
What DRG does E83.110 group to?
- E83.110 is used in the MS-DRG v44.0 logic for MS-DRG 642 (Inborn and Other Disorders of Metabolism). Which one applies depends on whether it is the principal diagnosis and on the rest of the claim.
What is the ICD-9 code for E83.110?
- The CMS General Equivalence Mappings map E83.110 to ICD-9-CM 275.01.