277 Other and unspecified disorders of metabolism (277.00-277.9) ICD-9-CM
The 277.00-277.9 block classified 277 other and unspecified disorders of metabolism with 24 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 277.00-277.9 Block 24 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.
- 277.00 Cystic fibros w/o ileus
- 277.01 Cystic fibrosis w ileus
- 277.02 Cystic fibros w pul man
- 277.03 Cystic fibrosis w GI man
- 277.09 Cystic fibrosis NEC
- 277.1 Dis porphyrin metabolism
- 277.2 Purine/pyrimid dis NEC
- 277.30 Amyloidosis NOS
- 277.31 Fam Mediterranean fever
- 277.39 Amyloidosis NEC
- 277.4 Dis bilirubin excretion
- 277.5 Mucopolysaccharidosis
- 277.6 Defic circul enzyme NEC
- 277.7 Dysmetabolic syndrome x
- 277.81 Primary carnitine defncy
- 277.82 Crnitne def d/t nb met
- 277.83 Iatrogenic carnitine def
- 277.84 Sec carnitine defncy NEC
- 277.85 Disorders acid oxidation
- 277.86 Peroxisomal disorders
- 277.87 Dis mitochondrial metab
- 277.88 Tumor lysis syndrome
- 277.89 Metabolism disorder NEC
- 277.9 Metabolism disorder NOS
Questions About This Page
Are the 277.00-277.9 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 277.00-277.9 block classify?
The block classified 277 other and unspecified disorders of metabolism with 24 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.
