D55
Header — not billableAnemia due to enzyme disorders
The ICD-10 code for anemia due to enzyme disorders is D55.
D55 is a non-billable header code. It groups related conditions but cannot be used on its own for reimbursement — select one of the 6 more specific codes below.
Clinical notes
Excludes1 (not coded here)
An Excludes1 note is a pure exclusion: the excluded condition and this code should never be reported together, because the two conditions cannot occur at the same time (e.g. a congenital form vs. an acquired form of the same disease).
- drug-induced enzyme deficiency anemia (D59.2)
Documentation support
General coding-documentation guidance — not a substitute for payer-specific requirements or professional coding judgment.
- •This is a non-billable header code. Documentation must support a more specific child code before this diagnosis can be reported on a claim.
- •Confirm the excluded condition(s) listed above are not also present — Excludes1 conditions cannot be coded together with this one.
- •As a general rule, code to the highest level of specificity supported by the documentation in the medical record.
Child codes under D55
- D55.0Anemia due to glucose-6-phosphate dehydrogenase [G6PD] deficiency
- D55.1Anemia due to other disorders of glutathione metabolism
- D55.2Anemia due to disorders of glycolytic enzymesnon-billable header
- D55.3Anemia due to disorders of nucleotide metabolism
- D55.8Other anemias due to enzyme disorders
- D55.9Anemia due to enzyme disorder, unspecified
Related codes in this category
- D56Thalassemianon-billable header
- D57Sickle-cell disordersnon-billable header
- D58Other hereditary hemolytic anemiasnon-billable header
- D59Acquired hemolytic anemianon-billable header
- D55Anemia due to enzyme disordersnon-billable header