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E40-E46 vs T73.0

E40-E46 (Malnutrition (E40-E46)) compared with T73.0 (Starvation), from the official CMS tabular data.

Summary

These codes can be reported together when both conditions are documented, because E40-E46 lists T73.0 under Excludes2, which marks them as distinct conditions.

Official rule
What is different?

The conditions named and chapter.E40-E46 is “Malnutrition (E40-E46)”; T73.0 is “Starvation”. E40-E46 sits in E00-E89 — Endocrine, Nutritional and Metabolic Diseases (E00-E89); T73.0 in S00-T88 — Injury, Poisoning and Certain Other Consequences of External Causes (S00-T88).

Registry fact

Can these codes be reported together?

Yes, when both are documented.E40-E46 lists T73.0 under Excludes2: “starvation (T73.0)”. Excludes2 marks distinct conditions that may both be reported when both are documented.

Official ruleGuide: Excludes1 vs Excludes2

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 there an Excludes2 relationship?

Yes.E40-E46’s tabular entry: “starvation (T73.0)”. The note covers T73.0.

Official ruleGuide: Excludes1 vs Excludes2

Is one more specific?

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

Is one a parent or header code?

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

Registry fact

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)
↔
T73.0
Starvation

What we found

Yes, when both are documented.E40-E46 carries an Excludes2 note covering T73.0: “starvation (T73.0)”

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 FY2026

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

E40-E46Malnutrition (E40-E46)T73.0Starvation
Billing statusNon-billable headerNon-billable header

Report instead: T73.0XXA, T73.0XXD, T73.0XXS

ClassificationE00-E89 — Endocrine, Nutritional and Metabolic Diseases (E00-E89)S00-T88 — Injury, Poisoning and Certain Other Consequences of External Causes (S00-T88)
DefinitionMalnutrition (E40-E46) is a non-billable ICD-10-CM category code (E40-E46).Starvation is a non-billable ICD-10-CM category code (T73.0).
7th character—The appropriate 7th character is to be added to each code from category T73
Includes—
Deprivation of food
Excludes1
intestinal malabsorption (K90.-)
sequelae of protein-calorie malnutrition (E64.0)
—
Excludes2
nutritional anemias (D50-D53)
starvation (T73.0)
—
Code also—
, if applicable, place of occurrence, such as:
highway rest stop (Y92.523)
school (private) (public) (state) as the place of occurrence of the external cause (Y92.21-)
service areas as the place of occurrence of the external cause (Y92.52-)
single-family non-institutional (private) house as the place of occurrence of the external cause (Y92.01-)
transport vehicle as the place of occurrence of the external cause (Y92.81-)

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.

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