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ICD-10-CM Code D51.1
Vitamin B12 deficiency anemia due to selective vitamin B12 malabsorption with proteinuria

Billable Code
Billable codes are sufficient justification for admission to an acute care hospital when used a principal diagnosis.
| ICD-10 from 2011 - 2016

D51.1 is a billable ICD code used to specify a diagnosis of vitamin B12 deficiency anemia due to selective vitamin B12 malabsorption with proteinuria. A 'billable code' is detailed enough to be used to specify a medical diagnosis.

The ICD code D511 is used to code Megaloblastic anemia

Megaloblastic anemia (or megaloblastic anaemia) is an anemia (of macrocytic classification) that results from inhibition of DNA synthesis during red blood cell production. When DNA synthesis is impaired, the cell cycle cannot progress from the G2 growth stage to the mitosis (M) stage. This leads to continuing cell growth without division, which presents as macrocytosis. Megaloblastic anemia has a rather slow onset, especially when compared to that of other anemias. The defect in red cell DNA synthesis is most often due to hypovitaminosis, specifically a deficiency of vitamin B12 and/or folic acid. Vitamin B12 deficiency alone will not cause the syndrome in the presence of sufficient folate, as the mechanism is loss of B12 dependent folate recycling, followed by folate-deficiency loss of nucleic acid synthesis (specifically thymine), leading to defects in DNA synthesis. Folic acid supplementation in the absence of vitamin B12 prevents this type of anemia (although other vitamin B12-specific pathologies may be present). Loss of micronutrients may also be a cause. Copper deficiency resulting from an excess of zinc from unusually high oral consumption of zinc-containing denture-fixation creams has been found to be a cause.

Specialty: Hematology
MeSH Code: D000749
ICD 9 Code: 281

Peripheral blood smear showing hypersegmented neutrophils, characteristic of megaloblastic anemia.

Source: Wikipedia

Coding Notes for D51.1 Info for medical coders on how to properly use this ICD-10 code

Inclusion Terms:
Inclusion Terms
Inclusion Terms are a list of concepts for which a specific code is used. The list of Inclusion Terms is useful for determining the correct code in some cases, but the list is not necessarily exhaustive.
Imerslund (Gräsbeck) syndrome
Megaloblastic hereditary anemia

MS-DRG Mapping

  • DRG Group #811-812 - Red blood cell disorders with MCC.
  • DRG Group #811-812 - Red blood cell disorders without MCC.

Related Concepts SNOMET-CT

  • Selective malabsorption of cyanocobalamin (disorder)

ICD-10-CM Alphabetical Index References for 'D51.1 - Vitamin B12 deficiency anemia due to selective vitamin B12 malabsorption with proteinuria'

The ICD-10-CM Alphabetical Index links the below-listed medical terms to the ICD code D51.1. Click on any term below to browse the alphabetical index.


Other vitamin B12 deficiency anemia (approximate match)

This is the official approximate match mapping between ICD9 and ICD10, as provided by the General Equivalency mapping crosswalk. This means that while there is no exact mapping between this ICD10 code D51.1 and a single ICD9 code, 281.1 is an approximate match for comparison and conversion purposes.

Parent Code: D51 - Vitamin B12 deficiency anemia

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Source: http://icd.codes/icd10cm/D511