255 Disorders of adrenal glands (255.0-255.9) ICD-9-CM
The 255.0-255.9 block classified 255 disorders of adrenal glands with 14 legacy diagnosis codes. None remain valid for claim submission; each code below links to its reference page with the official ICD-10-CM replacement under the CMS General Equivalence Mappings.
Retired Code Set
ICD-9-CM stopped being valid for U.S. claims with dates of service on or after October 1, 2015, when ICD-10-CM replaced it. Use this index for historical lookups and crosswalking; for current coding, start from the ICD-10-CM codes list or the ICD-9 / ICD-10 converter.
Legacy Codes in the 255.0-255.9 Block 14 codes
None of these codes remain valid for claim submission. Each code page shows its ICD-10-CM replacement under the CMS General Equivalence Mappings.
- 255.0 Cushing's syndrome
- 255.10 Hyperaldosteronism NOS
- 255.11 Glucrtcod-rem aldsternsm
- 255.12 Conn's syndrome
- 255.13 Bartter's syndrome
- 255.14 Secondry aldosternsm NEC
- 255.2 Adrenogenital disorders
- 255.3 Corticoadren overact NEC
- 255.41 Glucocorticoid deficient
- 255.42 Mineralcorticoid defcnt
- 255.5 Adrenal hypofunction NEC
- 255.6 Medulloadrenal hyperfunc
- 255.8 Adrenal disorder NEC
- 255.9 Adrenal disorder NOS
Questions About This Page
Are the 255.0-255.9 codes still billable?
No. Every code in this block became invalid for U.S. claims after September 30, 2015. Each code page linked above shows the ICD-10-CM replacement CMS assigned in the General Equivalence Mappings, and the ICD-9 / ICD-10 converter translates any of them directly.
What did the 255.0-255.9 block classify?
The block classified 255 disorders of adrenal glands with 14 codes in the final ICD-9-CM release. It sat under Endocrine, nutritional and metabolic diseases, and immunity disorders (240–279) in the legacy hierarchy.
Related References
Source: final CMS ICD-9-CM release (version date October 1, 2014). Retired from U.S. claims after September 30, 2015.
