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HomeICD-10 CodesE66
ICD-10-CM
Billable

E66

Classification
Category:
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Coding Guidance
Coding Guidance E66 should not be used for reimbursement purposes as there are more specific codes below it that contain a greater level of detail. See Related Codes to drill down to more specific billable codes for appropriate reimbursement.
Excludes 1
From
  • transitory endocrine and metabolic disorders specific to newborn ( P70-P74 )
Excludes 2
From
  • adiposogenital dystrophy ( E23.6 )
  • lipomatosis dolorosa [Dercum] ( E88.2 )
  • lipomatosis NOS ( E88.2 )
  • Prader-Willi syndrome ( Q87.11 )
Use Additional Code
From
Use Additional Code The 'use additional code' note instructs that a secondary code should be added to provide more detail. 1 item • code to identify body mass index (BMI), if known, for adults ( Z68.1- Z68.45 ) or pediatrics ( Z68.5- )

More Specific Codes

E66.0
Obesity due to excess calories E66.0
E66.1
Drug-induced obesity E66.1
E66.2
Morbid (severe) obesity with alveolar hypoventilation E66.2
E66.3
Overweight E66.3
E66.8
Other obesity E66.8
E66.9
Obesity, unspecified E66.9
E00-E89
E00-E89 - Endocrine, nutritional and metabolic diseases

External Resources

2025 ICD-10 guidelines from CMS.gov