E ICD-10-CM Categories: Category Index
Browse 73 top-level ICD-10-CM categories beginning with E, then follow their complete FY 2027 child-code hierarchies.
Categories beginning with E
Open a category to continue through its complete hierarchy of more specific codes.
E00Congenital iodine-deficiency syndromeE01Iodine-deficiency related thyroid disorders and allied conditionsE02Subclinical iodine-deficiency hypothyroidismE03Other hypothyroidismE04Other nontoxic goiterE05Thyrotoxicosis [hyperthyroidism]E06ThyroiditisE07Other disorders of thyroidE08Diabetes mellitus due to underlying conditionE09Drug or chemical induced diabetes mellitusE10Type 1 diabetes mellitusE11Type 2 diabetes mellitusE13Other specified diabetes mellitusE15Nondiabetic hypoglycemic comaE16Other disorders of pancreatic internal secretionE20HypoparathyroidismE21Hyperparathyroidism and other disorders of parathyroid glandE22Hyperfunction of pituitary glandE23Hypofunction and other disorders of the pituitary glandE24Cushing's syndromeE25Adrenogenital disordersE26HyperaldosteronismE27Other disorders of adrenal glandE28Ovarian dysfunctionE29Testicular dysfunctionE30Disorders of puberty, not elsewhere classifiedE31Polyglandular dysfunctionE32Diseases of thymusE34Other endocrine disordersE35Disorders of endocrine glands in diseases classified elsewhereE36Intraoperative complications of endocrine systemE40KwashiorkorE41Nutritional marasmusE42Marasmic kwashiorkorE43Unspecified severe protein-calorie malnutritionE44Protein-calorie malnutrition of moderate and mild degreeE45Retarded development following protein-calorie malnutritionE46Unspecified protein-calorie malnutritionE50Vitamin A deficiencyE51Thiamine deficiencyE52Niacin deficiency [pellagra]E53Deficiency of other B group vitaminsE54Ascorbic acid deficiencyE55Vitamin D deficiencyE56Other vitamin deficienciesE58Dietary calcium deficiencyE59Dietary selenium deficiencyE60Dietary zinc deficiencyE61Deficiency of other nutrient elementsE63Other nutritional deficienciesE64Sequelae of malnutrition and other nutritional deficienciesE65Localized adiposityE66Overweight and obesityE67Other hyperalimentationE68Sequelae of hyperalimentationE70Disorders of aromatic amino-acid metabolismE71Disorders of branched-chain amino-acid metabolism and fatty-acid metabolismE72Other disorders of amino-acid metabolismE73Lactose intoleranceE74Other disorders of carbohydrate metabolismE75Disorders of sphingolipid metabolism and other lipid storage disordersE76Disorders of glycosaminoglycan metabolismE77Disorders of glycoprotein metabolismE78Disorders of lipoprotein metabolism and other lipidemiasE79Disorders of purine and pyrimidine metabolismE80Disorders of porphyrin and bilirubin metabolismE83Disorders of mineral metabolismE84Cystic fibrosisE85AmyloidosisE86Volume depletionE87Other disorders of fluid, electrolyte and acid-base balanceE88Other and unspecified metabolic disordersE89Postprocedural endocrine and metabolic complications and disorders, not elsewhere classifiedSource and release
- Data release
- U.S. ICD-10-CM · FY 2027
- Effective date
- Oct 1, 2026
- Publisher
- Vero Scribe Inc.
This category index is generated from Vero’s repository-backed ICD-10-CM hierarchy. Every listed category is a top-level record, and each linked category page exposes its direct child codes.
Frequently asked questions
Which ICD-10-CM categories begin with E?
This index lists 73 top-level categories beginning with E from Vero’s FY 2027 U.S. ICD-10-CM reference dataset.
How do I find a more specific E code?
Open a category below, then follow its linked child-code hierarchy until you reach the code supported by the documentation.
Which ICD-10-CM release does this E index use?
The index uses the FY 2027 U.S. ICD-10-CM release and the repository-backed hierarchy displayed on each linked code page.
Is every E category billable?
No. These are top-level categories used for navigation. Follow the hierarchy to a sufficiently specific code and confirm the active code set, official guidance, and payer requirements.