ICD Code D51.0

ICD code D51.0 is vitamin B12 deficiency anemia caused by a lack of intrinsic factor, which is necessary for the body to absorb vitamin B12 from food.

1. Presence of macrocytic anemia confirmed by laboratory findings (elevated mean corpuscular volume)

2. Low serum vitamin B12 levels

3. Clinical symptoms such as fatigue, pallor, glossitis, or neurological manifestations (e.g., paresthesia, ataxia, memory impairment)

4. Evidence of intrinsic factor deficiency (e.g., positive intrinsic factor antibody test or abnormal Schilling test)

5. Exclusion of other causes of vitamin B12 deficiency (such as dietary insufficiency, malabsorption syndromes, or gastrointestinal surgery)

6. Absence of folate deficiency or other hematologic disorders causing similar symptoms

Relevant CPT codes that may be used to treat ICD code D51.0 include:

- 96372 (Therapeutic, prophylactic, or diagnostic injection; subcutaneous or intramuscular)

- J3420 (Injection, vitamin B-12 cyanocobalamin, up to 1,000 mcg)

- J3490 (Unclassified drugs, when a specific B12 formulation is not otherwise specified)

- 36415 (Collection of venous blood by venipuncture, if monitoring is required)

- 80048, 80053, 80076 (Basic metabolic panel, comprehensive metabolic panel, hepatic function panel, for monitoring related labs)

- 82607 (Vitamin B12; quantitation)

These codes should be selected based on the specific services rendered in the treatment of D51.0.

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