A patient has iron deficiency anemia due to chronic blood loss. Which ICD-10-CM code applies?
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Answer:
D50.0 = iron deficiency anemia secondary to blood loss (chronic). D50.9 is iron deficiency anemia, unspecified. D50.1 is sideropenic dysphagia. D64.9 is anemia, unspecified. When the physician documents the specific cause (chronic blood loss), the more specific D50.0 is correct. This distinction affects HCC mapping and clinical management documentation.
Source: ICD-10-CM Official Guidelines for Coding and Reporting, I.B.9 (FY2026)
