Billing Status: YES. This is a valid, specific, and billable ICD-10-CM reference.

Inpatient Payment Groups (MS-DRG)

MS-DRGs this diagnosis helps define, as principal or secondary, per the CMS ICD-10-CM/PCS MS-DRG Definitions Manual v43.0 (FY2026), Appendix B.

MS-DRG 640 — MISCELLANEOUS DISORDERS OF NUTRITION, METABOLISM, FLUIDS AND ELECTROLYTES WITH MCC (MDC 10)
MS-DRG 641 — MISCELLANEOUS DISORDERS OF NUTRITION, METABOLISM, FLUIDS AND ELECTROLYTES WITHOUT MCC (MDC 10)
MS-DRG 791 — PREMATURITY WITH MAJOR PROBLEMS (MDC 15)
MS-DRG 793 — FULL TERM NEONATE WITH MAJOR PROBLEMS (MDC 15)

A diagnosis appearing in a group's logic does not by itself determine the DRG assigned to a stay; the grouper uses the full claim.

Code Set: Valid FY2026 and FY2027. FY2026 took effect October 1, 2025.

Official Registry Overview & Definition

Sequelae of protein-calorie malnutrition is a billable ICD-10-CM diagnosis code (E64.0).

Sequencing, inclusion, and exclusion notes published for E64.0 in the official ICD-10-CM tabular list.

Conditions not covered by this code, but which may be reported alongside it when both are present.

Underlying conditions that must be sequenced before this code.

condition resulting from (sequela) of malnutrition and other nutritional deficiencies

Official ICD-10-CM classifications closest to E64.0 in its code family, with their registry titles.

Clinical term phrases from the official ICD-10-CM Index to Diseases and Injuries that map to this code.