E83.119 ICD-10-CM Code: Hemochromatosis, unspecified
HCC Buddy Code Card
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FY 2026 Apr update / Endocrine, nutritional and metabolic diseases (E00-E89) / Metabolic disorders (E70-E88)
E83.119
Billable / SpecificICD-10-CMOfficial ICD-10-CMCodebook guidanceHemochromatosis, unspecified
Iron overload in the body when the specific type or cause is not documented or determined.
Buddy Insight
Hemochromatosis, unspecified is used when iron overload is confirmed but the specific type (hereditary vs.
CMS-HCC V28
00
RAF 0
CMS-HCC V24
00
RAF 0
ACA/HHS
00
RAF 0
ESRD/PACE
00
RAF 0
RXHCC
MappedHCC 43
RAF 0.0
Code Trumping
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Code Book Path
Inclusion Terms
OfficialICD-10-CM does not list inclusion terms for E83.119 in this effective period.
Excludes 2
OfficialICD-10-CM does not list Excludes 2 notes for E83.119 in this effective period.
Related Child Codes
Includes
OfficialICD-10-CM does not list Includes notes for E83.119 in this effective period.
Excludes 1
Official- GALD (P78.84)
- Gestational alloimmune liver disease (P78.84)
- Neonatal hemochromatosis (P78.84)
Code First
OfficialICD-10-CM does not list Code First sequencing instructions for E83.119 in this effective period.
Use Additional
OfficialICD-10-CM does not list Use Additional Code instructions for E83.119 in this effective period.
Code Also
OfficialICD-10-CM does not list Code Also instructions for E83.119 in this effective period.
Buddy Documentation Tip
MEAT Support
Audit Caution
Common Mistakes
Last updated: FY2026 ICD-10-CM Apr update, Apr 1, 2026 through Sep 30, 2026. CMS-HCC V28 is 100% phased in for payment year 2026.
Is E83.119 an HCC code?
No. E83.119 is a billable ICD-10-CM code but does not map to any HCC category in V28, V24, ESRD, or RxHCC.
HCC Category Mapping
RAF weights shown are the community, non-dual, aged base weights from the CMS risk adjustment model file. Actual per-patient RAF contribution depends on member segment, interactions, and the model year used by the payer. V28 is the CMS-HCC model phased in over payment years 2024–2026; V24 remains in use during the transition and for historical data.
MEAT Criteria for E83.119
For E83.119to count as a valid HCC diagnosis in a given encounter, the provider's documentation must show MEAT: Monitor, Evaluate, Assess, or Treat. A diagnosis from a prior year does not carry forward automatically, it has to be re-documented and supported each calendar year.
- MMonitor: signs, symptoms, disease progression, or lab trending documented in the note
- EEvaluate: test results, medication response, or physical findings reviewed by the provider
- AAssess: explicit mention in the assessment or plan with acknowledgment of status
- TTreat: medication, referral, procedure, therapy, or counseling tied to the diagnosis
Only one of M/E/A/T is required to support the code, but the documentation must be specific enough to show that the provider actually addressed E83.119 during that encounter, not just copy-forwarded from a problem list.
What This Code Means
E83.119 is the ICD-10-CM diagnosis code for hemochromatosis, unspecified. Iron overload in the body when the specific type or cause is not documented or determined. E83.119 sits in the ICD-10-CM chapter for endocrine, nutritional and metabolic diseases (e00-e89), within the section covering metabolic disorders (e70-e88).
E83.119 is a billable ICD-10-CM code but does not map to a payment HCC under the CMS-HCC V28, V24, ESRD, or RxHCC risk adjustment models. It can be reported on Medicare Advantage encounter data submissions but it does not contribute to a beneficiary's RAF score and therefore does not affect risk-adjusted payments to the plan.
This code does NOT map to a CMS-HCC under V24 or V28 models. It maps only to RxHCC 43. If the provider can confirm hereditary hemochromatosis, E83.110 should be used instead to capture V24 HCC 23 (RAF 0.23). This is a high-value query opportunity.
HCC Buddy maintains structured V28 and V24 mapping, RAF weights, and MEAT documentation criteria for E83.119 sourced directly from the CMS-HCC risk adjustment model files and the CMS ICD-10-CM code set.
Coding Tips
- •This is a less specific code; query the provider if the type of hemochromatosis can be determined
- •Use only when documentation does not specify hereditary or secondary causes
Clinical Significance
Hemochromatosis, unspecified is used when iron overload is confirmed but the specific type (hereditary vs. acquired) has not been determined. This code should prompt a query to the provider for clarification, as hereditary hemochromatosis maps to an HCC while this unspecified code does not.
Documentation Requirements
- ✓Diagnosis of hemochromatosis by the treating provider
- ✓Laboratory evidence of iron overload (elevated ferritin, transferrin saturation)
- ✓Reason the type cannot be specified (pending genetic testing, new diagnosis workup)
- ✓Treatment plan or referral for further evaluation
- ✓Query attempt to provider for hereditary vs. acquired specification
Commonly Confused Codes
- •E83.110: Hereditary hemochromatosis: preferred code when hereditary type is confirmed; carries HCC mapping
- •E83.118: Other hemochromatosis: use when secondary or non-hereditary type is specified
- •E83.10: Disorder of iron metabolism, unspecified: even less specific; avoid if hemochromatosis is documented
- •R79.89: Other specified abnormal findings of blood chemistry: do not use for elevated ferritin when hemochromatosis is diagnosed