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D53 vs E40-E46

D53 (Other nutritional anemias) compared with E40-E46 (Malnutrition (E40-E46)), from the official CMS tabular data.

Current data releases:ICD-10-CM FY2027 · ICD-10-PCS FY2027 · HCPCS October 2026 · MS-DRG v44 · Medicare Code Editor v44.0 · NCCI PTP Q4 2026 · MUE Q4 2026 · NCD code lists 2026-01 · LCD export September 28, 2026 · All releases and sources

Summary

These codes can be reported together when both conditions are documented, because E40-E46 lists D53 under Excludes2, which marks them as distinct conditions.

Official rule
What is different?

The conditions named and chapter.D53 is “Other nutritional anemias”; E40-E46 is “Malnutrition (E40-E46)”. D53 sits in D50-D89 — Diseases of the Blood and Blood-forming Organs and Certain Disorders Involving the Immune Mechanism (D50-D89); E40-E46 in E00-E89 — Endocrine, Nutritional and Metabolic Diseases (E00-E89).

Registry fact

Can these codes be reported together?

Yes, when both are documented.E40-E46 lists D53 under Excludes2: “nutritional anemias (D50-D53)”. Excludes2 marks distinct conditions that may both be reported when both are documented.

Official ruleGuide: Excludes1 vs Excludes2

Is there an Excludes2 relationship?

Yes.E40-E46’s tabular entry: “nutritional anemias (D50-D53)”. The note covers D53.

Official ruleGuide: Excludes1 vs Excludes2

Is one a parent or header code?

Both are headers.Both are non-billable headers, and neither contains the other.

Registry fact

Nothing found in 3 other checks; 1 check does not apply
Is there an Excludes1 relationship?

None.Neither entry carries an Excludes1 note that names the other code. E40-E46 carries 2 Excludes1 notes covering other codes; the side-by-side table quotes them.

Official rule

Is one more specific?

Not comparable.The codes sit in different categories; specificity is only comparable within one category.

Are there sequencing instructions?

None.Neither entry carries a Code First or Use Additional Code note that names the other.

Official rule

Are there other coding relationships?

None found.No laterality, encounter-phase, Table of Neoplasms, Table of Drugs and Chemicals, or history-versus-active-disease relationship links these codes.

MedCoder-derived

Official rule: a tabular instructional note or a section of the ICD-10-CM Official Guidelines, quoted as published. Registry fact: the codes’ own published attributes (titles, billable status, position in the hierarchy, code set). MedCoder-derived: a reading MedCoder computes from those facts; it is not itself a rule. How to read the labels

Can these codes be reported together?

Informational

Excludes2 relationship

E40-E46
Malnutrition (E40-E46)
↔
D53
Other nutritional anemias

What we found

Yes, when both are documented.E40-E46 carries an Excludes2 note covering D53: “nutritional anemias (D50-D53)”

Excludes2 marks distinct conditions — both may be reported when both are documented.

What to review

Report both only when the documentation supports both conditions; otherwise report the one documented.

Guide: Excludes1 vs Excludes2Check these on a claim

Why it matters

An Excludes2 note means the excluded condition is not part of the code above it, but a patient can have both. Report both when both are documented.

Source / rule

CMS ICD-10-CM tabular instructional notes

Official guidance behind these answers

  • Section I.A.12.b — Excludes2 · applies to: Excludes2

    A type 2 Excludes note represents “Not included here.” An excludes2 note indicates that the condition excluded is not part of the condition represented by the code, but a patient may have both conditions at the same time. When an Excludes2 note appears under a code, it is acceptable to use both the code and the excluded code together, when appropriate.

    ICD-10-CM Official Guidelines FY2027

Quoted from the ICD-10-CM Official Guidelines for Coding and Reporting in effect for the release shown. The tabular notes above are the code-level instruction; these sections are the convention that says how such a note is applied. Source document (CMS PDF) · Release and checksum

Side by side

Similar descriptions do not make codes interchangeable. The documentation and the official instructions decide which code applies.

Official descriptionDiffers
D53

Other nutritional anemias

E40-E46

Malnutrition (E40-E46)

StatusDiffers
D53
Non-billable header

A header is not reported on a claim; a code beneath it is.

Report instead: D53.0, D53.1, D53.2, D53.8, D53.9

E40-E46
Non-billable header

A header is not reported on a claim; a code beneath it is.

Excludes1Differs
D53

None at this code

E40-E46
  • intestinal malabsorption (K90.-)
  • sequelae of protein-calorie malnutrition (E64.0)
Excludes2Differs
D53

None at this code

E40-E46
  • nutritional anemias (D50-D53)
  • starvation (T73.0)
CategoryDiffers
D53

Is itself a category

E40-E46

E40 Kwashiorkor

ChapterDiffers
D53

D50-D89 — Diseases of the Blood and Blood-forming Organs and Certain Disorders Involving the Immune Mechanism (D50-D89)

E40-E46

E00-E89 — Endocrine, Nutritional and Metabolic Diseases (E00-E89)

IncludesDiffers
D53
  • megaloblastic anemia unresponsive to vitamin B12 or folate therapy
E40-E46

None at this code

No Code first, Use additional code, Code also and 7th character note at either code.

Notes are the code’s own tabular entry, quoted as published. A note that names the other code is the one the verdict above rests on. In a row that differs, each code’s own notes are listed under it, and the notes every code shares are listed once beneath them.

Edit this comparisonCheck a whole claim

Derived from the official CMS ICD-10-CM tabular data (FY2027). A coding-rule comparison, not billing advice: payer-specific edits and medical-necessity policy are outside its scope. All data sources