E46

Unspecified protein-calorie malnutrition

Risk-adjusting (HCC)Billable code

HCC risk adjustment mapping

CMS-HCC ESRD V24

HCC21

Protein-Calorie Malnutrition

Coding notes

Excludes 1 never coded together · Excludes 2 may co-exist

This code · E46
Excludes 1

nutritional deficiency NOS (E63.9)

Synonyms

Malnutrition NOS Protein-calorie imbalance NOS

Inherited from E40-E46Malnutrition
Excludes 1

intestinal malabsorption (K90.-) sequelae of protein-calorie malnutrition (E64.0)

Excludes 2

nutritional anemias (D50-D53) starvation (T73.0)

Inherited from chapter 4Endocrine, nutritional and metabolic diseases
Excludes 1

transitory endocrine and metabolic disorders specific to newborn (P70-P74)

Note

All neoplasms, whether functionally active or not, are classified in Chapter 2. Appropriate codes in this chapter (i.e. E05.8, E07.0, E16-E31, E34.-) may be used as additional codes to indicate either functional activity by neoplasms and ectopic endocrine tissue or hyperfunction and hypofunction of endocrine glands associated with neoplasms and other conditions classified elsewhere.

Official Guidelines for E46

FY 2026 ›