D55 — Anemia due to enzyme disorders

Not billable

Is D55 billable?

No — D55 is a non-billable header code. D55 groups more specific codes and cannot be submitted on a claim. A valid ICD-10-CM code must be reported at the highest level of specificity available in its branch. Select one of the 7 billable codes beneath D55.

Billable codes under this header

D55 at a glance

Code	D55
Description	Anemia due to enzyme disorders
Billable	No — header code
Code set	ICD-10-CM FY2027
Valid for encounters	October 1, 2026 – September 30, 2027

Excludes1 — never code together

The conditions below can never be reported together with D55 on the same claim. An Excludes1 note means the two conditions cannot occur in the same patient, so reporting both is a coding error.

drug-induced enzyme deficiency anemia (D59.2)

Excludes2 — not included here — inherited from Chapter 3

The conditions below are not part of D55, but a patient may have both at the same time. When documentation supports it, D55 and the excluded code may both be reported.

autoimmune disease (systemic) NOS (M35.9)
certain conditions originating in the perinatal period (P00-P96)
complications of pregnancy, childbirth and the puerperium (O00-O9A)
congenital malformations, deformations and chromosomal abnormalities (Q00-Q99)
endocrine, nutritional and metabolic diseases (E00-E88)
human immunodeficiency virus [HIV] disease (B20)
injury, poisoning and certain other consequences of external causes (S00-T88)
neoplasms (C00-D49)
symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R94)

What codes fall under D55? (6)

How long has D55 existed?

D55 has been in ICD-10-CM since at least FY2016, the earliest fiscal year on record here.

Derived from the official order files for FY2016–FY2026. FY2017 and FY2020 publish no order file, so those years are not covered.

Which codes are confused with D55?

ICD-10-CM declares these codes mutually exclusive with D55 — exactly one of each pair can be correct for a given encounter.