Cushing's syndrome (E24) ICD-10-CM
The E24 code range covers cushing's syndrome with 8 ICD-10-CM diagnosis codes. 7 of them are billable and valid for claim submission in fiscal year 2027, and the category headers group them but cannot themselves be billed.
Type 1 Excludes
A type 1 excludes note is a pure excludes note. It means "NOT CODED HERE!" An Excludes1 note indicates that the code excluded should never be used at the same time as the code above the Excludes1 note. An Excludes1 is used when two conditions cannot occur together, such as a congenital form versus an acquired form of the same condition.
- congenital adrenal hyperplasia E25.0
Codes in the E24 Range 8 codes · 7 billable
Clinical Terms in This Code Range
Definitions from the National Library of Medicine for conditions coded in the E24 range.
ACTH Syndrome, Ectopic
Symptom complex due to ACTH production by non-pituitary neoplasms.
Cushing Syndrome
A condition caused by prolonged exposure to excess levels of cortisol (HYDROCORTISONE) or other GLUCOCORTICOIDS from endogenous or exogenous sources. It is characterized by upper body OBESITY; OSTEOPOROSIS; HYPERTENSION; DIABETES MELLITUS; HIRSUTISM; AMENORRHEA; and excess body fluid. Endogenous Cushing syndrome or spontaneous hypercortisolism is divided into two groups, those due to an excess of ADRENOCORTICOTROPIN and those that are ACTH-independent.
Nelson Syndrome
A syndrome characterized by HYPERPIGMENTATION, enlarging pituitary mass, visual defects secondary to compression of the OPTIC CHIASM, and elevated serum ACTH. It is caused by the expansion of an underlying ACTH-SECRETING PITUITARY ADENOMA that grows in the absence of feedback inhibition by adrenal CORTICOSTEROIDS, usually after ADRENALECTOMY.
About the E24 Code Range
Cushing's syndrome results from prolonged exposure to too much cortisol or similar substances called glucocorticoids, from inside or outside the body.
The subdivisions distinguish E24.0 for pituitary-dependent Cushing's disease, E24.1 for Nelson's syndrome, and E24.2 for drug-induced Cushing's syndrome. E24.3 describes ectopic ACTH syndrome, involving the hormone adrenocorticotropin. E24.4 identifies alcohol-induced pseudo-Cushing's syndrome. E24.8 covers other Cushing's syndrome, while E24.9 leaves the type unspecified.
Questions About This Page
How many billable codes are in the E24 range?
Of the 8 codes in this range, 7 are billable and valid for claim submission from October 1, 2026 through September 30, 2027. Category header codes group them but cannot be reported on claims.
What does the E24 range classify?
The range classifies cushing's syndrome. Each code links to its own reference page with billing status, MS-DRG grouping, coding notes, and clinical information.
Related References
Source: CMS FY 2027 ICD-10-CM Tabular List and order file, effective October 1, 2026 through September 30, 2027.
