E83.19 ICD-10-CM Code: Other disorders of iron metabolism
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FY 2026 Apr update / Endocrine, nutritional and metabolic diseases (E00-E89) / Metabolic disorders (E70-E88)
E83.19
Billable / SpecificICD-10-CMOfficial ICD-10-CMCodebook guidanceOther disorders of iron metabolism
Problems with how the body processes and uses iron that don't fit into other specific iron metabolism categories.
Buddy Insight
This code captures iron metabolism disorders that are not classified as hemochromatosis, such as sideroblastic anemia-related iron loading or other rare iron transport deficiencies.
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 E83.19 in this effective period.
Excludes 2
OfficialICD-10-CM does not list Excludes 2 notes for E83.19 in this effective period.
Related Child Codes
Includes
OfficialICD-10-CM does not list Includes notes for E83.19 in this effective period.
Excludes 1
Official- iron deficiency anemia (D50.-)
- sideroblastic anemia (D64.0-D64.3)
Code First
OfficialICD-10-CM does not list Code First sequencing instructions for E83.19 in this effective period.
Use Additional
Official- code, if applicable, for idiopathic pulmonary hemosiderosis (J84.03)
Code Also
OfficialICD-10-CM does not list Code Also instructions for E83.19 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 E83.19 an HCC code?
No. E83.19 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 E83.19
For E83.19to 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 E83.19 during that encounter, not just copy-forwarded from a problem list.
Coder workflow notes
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What This Code Means
E83.19 is the ICD-10-CM diagnosis code for other disorders of iron metabolism. Problems with how the body processes and uses iron that don't fit into other specific iron metabolism categories. E83.19 sits in the ICD-10-CM chapter for endocrine, nutritional and metabolic diseases (e00-e89), within the section covering metabolic disorders (e70-e88).
E83.19 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. No direct RAF score impact for Medicare Advantage. If the underlying condition is hemochromatosis (especially hereditary), a more specific code may capture HCC 23.
HCC Buddy maintains structured V28 and V24 mapping, RAF weights, and MEAT documentation criteria for E83.19 sourced directly from the CMS-HCC risk adjustment model files and the CMS ICD-10-CM code set.
Coding Tips
- •Review documentation carefully to determine if a more specific iron metabolism code applies
- •This code is appropriate for rare or atypical iron metabolism disorders
Clinical Significance
This code captures iron metabolism disorders that are not classified as hemochromatosis, such as sideroblastic anemia-related iron loading or other rare iron transport deficiencies. It reflects metabolic dysfunction that may require ongoing management and monitoring.
Documentation Requirements
- ✓Specific iron metabolism disorder identified by the provider
- ✓Laboratory results supporting the diagnosis (iron studies, ferritin, TIBC)
- ✓Clinical manifestations and affected organ systems
- ✓Distinction from hemochromatosis and iron deficiency
- ✓Treatment plan addressing the iron metabolism disorder
Use Additional Code
- code, if applicable, for idiopathic pulmonary hemosiderosis (J84.03)
Commonly Confused Codes
- •E83.110: Hereditary hemochromatosis: a specific iron overload condition with HCC mapping; do not use E83.19 for hemochromatosis
- •E83.118: Other hemochromatosis: use for non-hereditary hemochromatosis specifically
- •E61.1: Iron deficiency: opposite direction of iron metabolism dysfunction
- •D50.9: Iron deficiency anemia, unspecified: anemia from iron deficiency, distinct from iron metabolism disorders