Reserved for future guideline expansion
D51.0
BookmarkVitamin B12 deficiency anemia due to intrinsic factor deficiency
Filed alongside this entry 2
under Hunter's
Index entries, exactly as the book files them. This says they are listed together — not that any of them is documented in your chart.
Billable FY2027 2026-10-01 → 2027-09-30
How to use this page
Everything the published sources say about one code, on one page.
- Read the Excludes1 block first — it is the one that stops you coding this at all alongside another code.
- Excludes2, Code first, Use additional and Includes follow. A note inherited from a parent category is labelled with the category it came from, so you can see why it applies.
- Official Guidelines sit below. "Guidelines naming this code" cite the code or a range containing it; "Chapter guidance" is the general guidance for its chapter and is the weaker signal.
- Guideline text is quoted verbatim with its section number and page, so you can check it against the published document.
- Risk-model chips show which published CMS models map this code.
What this page does not do
- Guidance is quoted, never paraphrased — a paraphrase of a coding rule is a different rule.
- Medication candidates, where shown, are matched by condition *name* and are offered as candidates for you to judge. They are not "the drugs for this code".
Exclusions10never code together
D50-D89chapter
Excludes2
- autoimmune disease (systemic) NOS (M35.9)M35.9
- certain conditions originating in the perinatal period (P00-P96)P00-P96
- complications of pregnancy, childbirth and the puerperium (O00-O9A)O00-O9A
- congenital malformations, deformations and chromosomal abnormalities (Q00-Q99)Q00-Q99
- endocrine, nutritional and metabolic diseases (E00-E88)E00-E88
- human immunodeficiency virus [HIV] disease (B20)B20
- injury, poisoning and certain other consequences of external causes (S00-T88)S00-T88
- neoplasms (C00-D49)C00-D49
- symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R94)R00-R94
Excludes2 — not included here, but the patient may have both. Code both when documented.
Instructional notes4
D51.0code
Inclusion terms
- Addison anemia
- Biermer anemia
- Pernicious (congenital) anemia
- Congenital intrinsic factor deficiency
Official Guidelines1names this code
ICD-10-CM Official Guidelines for Coding and Reporting, quoted in full. Published by CMS and NCHS; in the public domain.
Index entries leading here17
- Addison-Biermer anemia (pernicious) D51.0
- Anemia (essential) (general) (hemoglobin deficiency) (infantile) (primary) (profound) D64.9
- Addison (-Biermer) (pernicious) D51.0
- Biermer's (pernicious) D51.0
- congenital P61.4
- pernicious D51.0
- cytogenic D51.0
- deficiency D53.9
- malignant (progressive) D51.0
- pernicious (congenital) (malignant) (progressive) D51.0
- progressive D64.9
- vitamin
- B12 deficiency (dietary) pernicious D51.0
- combined system disease NEC D51.0
- Addison's
- anemia (pernicious) D51.0
- Disease, diseased — see also Syndrome
- Biermer's (pernicious) anemia or disease D51.0
- Degeneration, degenerative
- Congenital — see also condition
- intrinsic factor deficiency D51.0
- Syndrome — see also Disease
- Deficiency, deficient
- intrinsic
- factor (congenital) D51.0
- intrinsic
- Hunter's
- glossitis D51.0
- Glossitis (chronic superficial) (gangrenous) (Moeller's) K14.0
- Hunter's D51.0
- Myasthenia G70.9
- syndrome
- in
- pernicious anemia D51.0
- in
- syndrome
- Myelopathy (spinal cord) G95.9
- in (due to)
- pernicious anemia D51.0
- in (due to)
- Polyneuropathy (peripheral) G62.9
- Lichtheim's disease or syndrome D51.0
- Neuropathy, neuropathic G62.9
- Runeberg's disease D51.0
Alongside this code5same parent — D51
Medications1
MED-RT files conditions by MeSH, which carves the world differently from ICD-10. These are name matches on this code's description, offered as candidates — not as an assertion that they are this code.
Additional references
AHA Coding Clinic® Licence required
Official coding advice for this code. Published by the American Hospital Association. Not included in this installation.