D51.2

D51.2: Transcobalamin II deficiency

Billable / specific codeICD-10-CM

D51.2 is a billable, specific ICD-10-CM code for transcobalamin ii deficiency. It is valid for submission on a claim.

Check D51.2 with the rest of the claim: free scrubber

Excludes2 inherited from the categories above D51.2

Not part of this code, but both may be coded when both are present.

Written on D51: Vitamin B12 deficiency anemia

deficiency of other B group vitamins (E53-)

Other codes that can never be billed with D51.2

Their own Excludes1 notes name this code, so the conflict is not listed above.

E72.1Disorders of sulfur-bearing amino-acid metabolism

Risk adjustment

No CMS-HCC V28 category: this code does not change a RAF score.

Medicare coverage

D51.2 is named in 4 Medicare coverage policies: 4 listing it as supporting medical necessity. Which one applies depends on your Medicare contractor.

A56416Billing and Coding: Assays for Vitamins and Metabolic Function
A56464Billing and Coding: Flow Cytometry
A56675Billing and Coding: Homocysteine Level, Serum
A57755Billing and Coding: Vitamin B<sub>12</sub> Injections

Alphabetic index entries that lead here

Deficiency, deficient›transcobalamine II(anemia)
Anemia›deficiency›transcobalamin II
Anemia›due to›transcobalamin II deficiency

Code history

Unchanged in every release from FY2024 to FY2027.