Is ICD-10-CM code E43 billable?

Yes, E43 (Unspecified severe protein-calorie malnutrition) is a billable ICD-10-CM diagnosis code, valid for reimbursement on HIPAA-covered transactions for FY2026.

What chapter does ICD-10-CM code E43 belong to?

E43 belongs to Chapter 4 of the ICD-10-CM tabular list: E00–E89 (Endocrine, Nutritional and Metabolic Diseases).

E43Billable

Unspecified severe protein-calorie malnutrition

Endocrine, Nutritional and Metabolic Diseases·Malnutrition (E40-E46)·category·FY 2026

CH4 Parent Instructions

Excludes1(Not coded here. Use a different code.)

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

E40-E46 Parent Instructions

Excludes1(Not coded here. Use a different code.)

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

Excludes2(Not included here. Code separately if applicable.)

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

Instructional Notes

Includes

Starvation edema

Clinical Hierarchy

BillableHas subcodes

CH4Endocrine, nutritional and metabolic diseases (E00-E89)

E40-E46Malnutrition (E40-E46)

E43Unspecified severe protein-calorie malnutritionBillable

MS-DRG Classification

2026 v43.1

This code is grouped within the following Diagnosis Related Group(s) for clinical reimbursement:

DRG 640

Miscellaneous Disorders of Nutrition, Metabolism, Fluids and Electrolytes with MCC

DRG 641

Miscellaneous Disorders of Nutrition, Metabolism, Fluids and Electrolytes without MCC

DRG 791

Prematurity with Major Problems

DRG 793

Full Term Neonate with Major Problems