ICD-10 Code E43: Unspecified Severe Protein-Calorie Malnutrition – Complete Coding & Billing Guide
ICD-10 code E43 identifies unspecified severe protein-calorie malnutrition — a potentially life-threatening nutritional deficit where the provider has confirmed severity but has not documented a specific malnutrition subtype such as kwashiorkor or marasmus. This code is billable, valid for fiscal year 2026, and maps to MS-DRG 640 (with MCC) or 641 (without MCC) under ICD-10-CM […]
ICD-10 Code Category E21-: Hyperparathyroidism and Other Disorders of the Parathyroid Gland – Complete Coding & Billing Guide
What Is ICD-10 Category E21- and Why Does It Matter for Coders? ICD-10-CM category E21- covers Hyperparathyroidism and Other Disorders of the Parathyroid Gland — a group of endocrine conditions in which the parathyroid glands produce abnormal levels of parathyroid hormone (PTH), disrupting the body’s calcium-phosphorus balance. The category spans six distinct subcodes (E21.0–E21.5) that […]
ICD-10 Code E11.3313: Type 2 Diabetes with Moderate Nonproliferative Retinopathy & Bilateral Macular Edema – Complete Coding & Billing Guide
What Does ICD-10 Code E11.3313 Mean? ICD-10-CM code E11.3313 describes Type 2 diabetes mellitus with moderate nonproliferative diabetic retinopathy with macular edema, bilateral — meaning the patient has confirmed Type 2 diabetes that has caused moderate-stage retinal damage accompanied by macular swelling in both eyes. This is a billable, specific diagnosis code valid for HIPAA-covered […]
ICD-10 Code E10.40: Type 1 Diabetes Mellitus with Diabetic Neuropathy, Unspecified – Complete Coding & Billing Guide
What Does ICD-10 Code E10.40 Mean? ICD-10-CM code E10.40 designates Type 1 diabetes mellitus with diabetic neuropathy, unspecified — a billable, specific diagnosis code applicable when a patient with confirmed Type 1 diabetes has documented nerve damage (neuropathy), but the clinical record does not specify the type of neuropathy involved. The code is valid for […]
ICD-10 Code D86.0: Pulmonary Sarcoidosis – Complete Coding & Billing Guide
What Does ICD-10 Code D86.0 Mean? ICD-10 code D86.0 designates a diagnosis of pulmonary sarcoidosis — a systemic granulomatous disease in which non-caseating granulomas form specifically within the lung tissue. D86.0 is a valid, billable diagnosis code applicable in both inpatient and outpatient settings for fiscal year 2025. It falls under the broader sarcoidosis category […]
ICD-10 Code D49.6: Neoplasm of Unspecified Behavior of Brain – Complete Coding & Billing Guide
What Does ICD-10 Code D49.6 Mean? ICD-10 code D49.6 designates a neoplasm of unspecified behavior of the brain — a billable diagnosis code used when a brain neoplasm has been identified but the pathological behavior (malignant, benign, or in situ) cannot be definitively determined from available clinical or diagnostic documentation. This code lives within the […]
ICD-10 Code C81.90: Hodgkin Lymphoma, Unspecified – Complete Coding & Billing Guide
What Does ICD-10 Code C81.90 Mean? ICD-10 code C81.90 designates Hodgkin lymphoma when neither the histologic subtype nor the anatomic site of involvement can be determined from available clinical documentation. This code represents a valid, billable diagnosis under the ICD-10-CM classification system for malignant neoplasms of lymphoid, hematopoietic, and related tissue. C81.90 functions as the […]
ICD-10 Code C79.89: Secondary Malignant Neoplasm of Other Specified Sites – Complete Coding & Billing Guide
What Does ICD-10 Code C79.89 Mean? ICD-10 code C79.89 identifies a secondary malignant neoplasm — meaning metastatic cancer — located at a specified anatomical site that is not individually enumerated elsewhere in the C79 category. This is a valid, billable diagnosis code under the ICD-10-CM classification system and applies exclusively to patients with a documented […]
ICD-10 Code B96.2: E. coli as the Cause of Diseases Classified Elsewhere – Complete Coding & Billing Guide
ICD-10-CM code B96.2 identifies Escherichia coli [E. coli] as the causative bacterial agent in an infectious disease that is classified and coded under a different ICD-10 chapter. It is a non-billable header code — meaning it cannot be submitted on a claim as written. Coders must assign one of its five specific subcodes (B96.20–B96.29) to […]
ICD-10 Code B95.6: Staphylococcus Aureus as the Cause of Diseases Classified Elsewhere – Complete Coding & Billing Guide
ICD-10 code B95.6 identifies Staphylococcus aureus as the causative organism behind a disease or infection coded elsewhere in the classification. It sits within Section B95–B97 (Bacterial and Viral Infectious Agents) and functions exclusively as a secondary, supplemental code — never as a standalone or principal diagnosis. Critically for coders: B95.6 itself is a non-billable header […]