2017/18 ICD-10-CM Diagnosis Code D51

Vitamin B12 deficiency anemia

Type 1 Excludes
Type 1 Excludes Help
A type 1 excludes note is a pure excludes. It means "not coded here". A type 1 excludes note indicates that the code excluded should never be used at the same time as D51. A type 1 excludes note is for used for when two conditions cannot occur together, such as a congenital form versus an acquired form of the same condition.
  • vitamin B12 deficiency (
    ICD-10-CM Diagnosis Code E53.8

    Deficiency of other specified B group vitamins

      2016 2017 2018 Billable/Specific Code
    Applicable To
    • Biotin deficiency
    • Cyanocobalamin deficiency
    • Folate deficiency
    • Folic acid deficiency
    • Pantothenic acid deficiency
    • Vitamin B12 deficiency
    Type 1 Excludes
    • folate deficiency anemia (D52.-)
    • vitamin B12 deficiency anemia (D51.-)
    E53.8
    )
The following code(s) above D51 contain annotation back-references
Annotation Back-References
In this context, annotation back-references refer to codes that contain:
  • Applicable To annotations, or
  • Code Also annotations, or
  • Code First annotations, or
  • Excludes1 annotations, or
  • Excludes2 annotations, or
  • Includes annotations, or
  • Note annotations, or
  • Use Additional annotations
that may be applicable to D51:
  • D50-D89
    2018 ICD-10-CM Range D50-D89

    Diseases of the blood and blood-forming organs and certain disorders involving the immune mechanism

    Type 2 Excludes
    • 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)
    Diseases of the blood and blood-forming organs and certain disorders involving the immune mechanism
Code History
Code annotations containing back-references to D51:
ICD-10-CM Codes Adjacent To D51
D49.7 Neoplasm of unspecified behavior of endocrine glands and other parts of nervous system
D49.8 Neoplasm of unspecified behavior of other specified sites
D49.81 Neoplasm of unspecified behavior of retina and choroid
D49.89 Neoplasm of unspecified behavior of other specified sites
D49.9 Neoplasm of unspecified behavior of unspecified site
D50 Iron deficiency anemia
D50.0 Iron deficiency anemia secondary to blood loss (chronic)
D50.1 Sideropenic dysphagia
D50.8 Other iron deficiency anemias
D50.9 Iron deficiency anemia, unspecified
D51 Vitamin B12 deficiency anemia
D51.0 Vitamin B12 deficiency anemia due to intrinsic factor deficiency
D51.1 Vitamin B12 deficiency anemia due to selective vitamin B12 malabsorption with proteinuria
D51.2 Transcobalamin II deficiency
D51.3 Other dietary vitamin B12 deficiency anemia
D51.8 Other vitamin B12 deficiency anemias
D51.9 Vitamin B12 deficiency anemia, unspecified
D52 Folate deficiency anemia
D52.0 Dietary folate deficiency anemia
D52.1 Drug-induced folate deficiency anemia
D52.8 Other folate deficiency anemias

Reimbursement claims with a date of service on or after October 1, 2015 require the use of ICD-10-CM codes.