D55 – Anemia due to enzyme disorders
ICD-10-CM 2027 diagnosis code · Hemolytic anemias
ICD-10-CM code
D55
- Code
D55(claims format:D55)- Description
- Anemia due to enzyme disorders
- Billable
- No – use a more specific code below
- Valid for
- Dates of service October 1, 2026 – September 30, 2027 (FY2027)
- Chapter
- 3. Diseases of the blood and blood-forming organs and certain disorders involving the immune mechanism (D50-D89)
- Block
- D55-D59 Hemolytic anemias
Billable codes under D55
D55 is a header code and cannot be used on claims. Choose the most specific code:
- D55.0 – Anemia due to glucose-6-phosphate dehydrogenase [G6PD] deficiencyBillable
- D55.1 – Anemia due to other disorders of glutathione metabolismBillable
- D55.2 – Anemia due to disorders of glycolytic enzymesHeader (more codes below)
- D55.3 – Anemia due to disorders of nucleotide metabolismBillable
- D55.8 – Other anemias due to enzyme disordersBillable
- D55.9 – Anemia due to enzyme disorder, unspecifiedBillable
Notes for D55
Excludes1 (not coded here):
- drug-induced enzyme deficiency anemia (D59.2)
Frequently asked questions
What is ICD-10 code D55?
D55 is the ICD-10-CM code for anemia due to enzyme disorders, in the block D55-D59 (Hemolytic anemias).
Is D55 a billable code?
No. D55 is a header code with more specific child codes; report one of the billable codes listed above.
Source: CDC/NCHS ICD-10-CM FY2027 code files, tabular list and index. Reference only – code assignment must follow the official ICD-10-CM guidelines and documentation in the medical record.