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E66.01 - Morbid (severe) obesity due to excess calories


The ICD 10 Code for Morbid (severe) obesity due to excess calories is listed as E66.01.
Additional information concerning this code and description can be found below including ICD 9 crosswalks / GEMS, chapter information, and DRGs where available.

ICD 10 CM Field Value
Diagnosis Code: E66.01
Description: Morbid (severe) obesity due to excess calories
  • Excludes1: morbid (severe) obesity with alveolar hypoventilation (E66.2)
Diagnostic Related Groups
(MS-DRG v30.0)
640 - Misc Disorders Of Nutrition,metabolism,fluids/electrolytes W Mcc
641 - Misc Disorders Of Nutrition,metabolism,fluids/electrolytes W/o Mcc
Chapter Endocrine, nutritional and metabolic diseases (E00-E89)
Block Overweight, obesity and other hyperalimentation (E65-E68)
Parent E66.0 - Obesity due to excess calories
ICD-9-CM Diagnosis Codes General Equivalence Mappings (GEMS):
ICD 9 Dx Code: 278.01 - Morbid obesity (approximate)
ICD-10-CM Siblings (same level / similar specificity) of E66.01:
E66.09 - Other obesity due to excess calories