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Home/Diagnosis/ICD-10 Coding for Vitamin B12 Deficiency

ICD-10 Coding for Vitamin B12 Deficiency

D51.0
D51.1
D51.2

Complete ICD-10-CM coding and documentation guide for icd-10 coding for vitamin b12 deficiency includes clinical validation requirements, medical necessity guidelines, and coding policies.

Also Known as:
Cobalamin Deficiency
Pernicious Anemia
b12 insufficiency
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Key Information: ICD-10 Coding for Vitamin B12 Deficiency

Essential facts and insights about ICD-10 Coding for Vitamin B12 Deficiency

Use ICD-10 code D51.0 for vitamin b12 deficiency anemia due to intrinsic factor deficiency, ensuring proper documentation in clinical notes.

Primary ICD-10-CM Codes

Vitamin B12 deficiency anemia due to intrinsic factor deficiency

Billable Code
D51.0
Billable

Diagnostic Criteria

  • • Positive intrinsic factor antibodies
  • • Abnormal Schilling test

Applicable To

  • • Pernicious anemia

Important Notes

  • • Ensure intrinsic factor deficiency is documented with lab confirmation.

Vitamin B12 deficiency anemia due to selective vitamin B12 malabsorption with proteinuria

Billable Code
D51.1
Billable

Diagnostic Criteria

  • • Proteinuria >300mg/day
  • • Genetic testing confirmation

Applicable To

  • • Imerslund-Gräsbeck syndrome

Important Notes

  • • Document genetic testing results and proteinuria levels.

Vitamin B12 deficiency anemia due to transcobalamin II deficiency

Billable Code
D51.2
Billable

Diagnostic Criteria

  • • Normal serum B12 with elevated MMA
  • • Genetic confirmation

Applicable To

  • • Transcobalamin II deficiency

Important Notes

  • • Document genetic testing and MMA levels.

Vitamin B12 deficiency anemia, unspecified

Billable Code
D51.9
Billable

Diagnostic Criteria

  • • MCV >100 fL
  • • Low B12 (<200pg/mL) without known cause

Applicable To

  • • Unspecified B12 deficiency anemia

Important Notes

  • • Use only when specific cause cannot be determined.

Other specified vitamin B group deficiencies

Billable Code
E53.8
Billable

Diagnostic Criteria

  • • B12 <200pg/mL
  • • Neurological symptoms present

Applicable To

  • • Vitamin B12 deficiency without anemia

Important Notes

  • • Document neurological symptoms and B12 levels.
Ancillary Codes

Additional codes that may be used with this diagnosis

K29.40

Chronic gastritis

Use when chronic gastritis is present with intrinsic factor deficiency.

N39.1

Persistent proteinuria

Use when proteinuria is documented with B12 malabsorption.

E88.09

Other specified metabolic disorders

Use when metabolic disorders are present with transcobalamin II deficiency.

G63.3

Polyneuropathy in diseases classified elsewhere

Use when neurological symptoms are present with B12 deficiency.

Frequently Asked Questions

What is the ICD-10 code for Vitamin B12 deficiency?

The primary ICD-10 code for Vitamin B12 deficiency with anemia is D51.0, while E53.8 is used for deficiency without anemia.

When should E53.8 be used instead of D51 codes?

E53.8 is used when Vitamin B12 deficiency is present without anemia, typically with neurological symptoms.

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