ICD-10-CM Code D50.9 – Iron deficiency anemia, unspecified

Code: D50.9 Type: ICD-10-CM (Diagnosis) Status: Active Effective: FY2016-2026

What does ICD-10-CM code D50.9 mean?

D50.9 represents Iron deficiency anemia, unspecified. This condition is classified under Chapter 3 (Blood and Blood-Forming Organs) in the ICD-10-CM coding system. Coders frequently reference this code as fe deficiency anemia icd 10 or fe deficiency anemia.

Code category and hierarchy

  • Chapter: 3 – Blood and Blood-Forming Organs (D50-D89)
  • Category: D50
  • Code: D50.9 – Iron deficiency anemia, unspecified

Guideline notes and coding considerations

Specificity Warning

D50.9 is an unspecified code. Query the provider for greater specificity when documentation suggests a more precise code is available. Using unspecified codes when specific codes exist may trigger audits.

  • Specificity: Assign D50.9 only when documentation supports this specific diagnosis.

Learn the underlying rules in the ICD-10 Coding Guidelines, Specificity Requirements.

Documentation tips (what coders should confirm)

  • Verify the clinical documentation supports the use of D50.9
  • Query the provider for greater specificity if clinical details suggest a more precise code

When NOT to use D50.9

Do not assign D50.9 when the clinical scenario involves: when documentation provides enough detail for a more specific code. Review excludes notes and assign the most specific code supported by documentation.

Audit risk

D50.9 is an unspecified code. Payers and auditors may flag claims with unspecified codes when the medical record contains sufficient detail for a more precise diagnosis. Query the provider for specificity before submitting.

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Related ICD-10 codes

D64.9

Anemia, unspecified

D69.6

Thrombocytopenia, unspecified

D72.829

Elevated white blood cell count, unspecified

Frequently Asked Questions

The ICD-10-CM code for fe deficiency anemia is D50.9, which represents iron deficiency anemia, unspecified. This code is also commonly referenced as fe deficiency anemia. Verify this code using the ICD Code Auditor to ensure guideline compliance.

Yes. D50.9 is an active ICD-10-CM diagnosis code used to classify iron deficiency anemia, unspecified for clinical documentation, reporting, and medical billing purposes.

Use the ICD Code Auditor to check D50.9 against official ICD-10-CM coding guidelines. The tool validates by fiscal year and patient gender to identify potential conflicts.

D50.9 should be used only when clinical documentation does not provide enough detail for a more specific code. Always query the provider when documentation suggests greater specificity is available, as unspecified codes may trigger audits and impact risk adjustment.

Documentation should clearly describe the clinical condition represented by D50.9 (Iron deficiency anemia, unspecified). Include relevant clinical findings, diagnostic test results, provider assessment, and the treatment plan. The diagnosis must be supported by the medical record and not based solely on lab results without clinical interpretation.

Sources

Reviewed by: Certified ICD-10 Coding & Risk Adjustment Specialist
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Validate D50.9 Against ICD 10 CM Coding Guidelines (FY2026)

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