Billable / Specific Code
ICD-10-CM E43 is the diagnosis code for Unspecified severe protein-calorie malnutrition. This code falls under the section "Malnutrition" within Chapter 4 — Endocrine, nutritional and metabolic diseases (E00-E89). It is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes. Medical coders and healthcare providers use this code to document and classify diagnoses in electronic health records, insurance claims, and clinical databases.
Understanding where E43 sits in the ICD-10-CM classification helps ensure proper coding:
Yes, E43 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
E43 is the ICD-10-CM diagnosis code for "Unspecified severe protein-calorie malnutrition". It is used by healthcare providers to classify and document this condition in medical records and insurance claims.
E43 is located in Section E40-E46 — "Malnutrition" within Chapter 4 of the ICD-10-CM Tabular List.
Use E43 when the patients documented diagnosis matches "Unspecified severe protein-calorie malnutrition" and the clinical documentation supports this level of specificity. Always verify with the latest ICD-10-CM guidelines and payer requirements.
The ICD-10-CM code for Unspecified severe protein-calorie malnutrition is E43.
Yes, E43 can be used as a primary diagnosis code since it is billable and specific.
E43 is in Chapter 4 of the ICD-10-CM Tabular List.
Yes, E43 is a valid ICD-10-CM code for the 2026 fiscal year, subject to official CMS updates.