D51 — Vitamin B12 deficiency anemia

Not billable

Is D51 billable?

No — D51 is a non-billable header code. D51 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 6 billable codes beneath D51.

Billable codes under this header

D51 at a glance

Code	D51
Description	Vitamin B12 deficiency anemia
Billable	No — header code
Code set	ICD-10-CM FY2027
Valid for encounters	October 1, 2026 – September 30, 2027

Excludes2 — not included here

The conditions below are not part of D51, but a patient may have both at the same time. When documentation supports it, D51 and the excluded code may both be reported.

deficiency of other B group vitamins (E53-)

Excludes2 — not included here — inherited from Chapter 3

The conditions below are not part of D51, but a patient may have both at the same time. When documentation supports it, D51 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 D51? (6)

How long has D51 existed?

D51 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.