ICD-10-CM Code E66.3
Overweight
Diagnosis information
Billable
Yes
Valid for claim submission
Chapter
E00–E89
Endocrine, nutritional and metabolic diseases
Risk adjustment
None
Not risk-adjustable (V28)
More codes in the E66 category
Other billable ICD-10-CM codes in the same category as E66.3. Coding to the highest specificity the documentation supports is what keeps a claim clean — pick the child code that most precisely matches the diagnosis.
- E66.01Morbid (severe) obesity due to excess calories
- E66.09Other obesity due to excess calories
- E66.1Drug-induced obesity
- E66.2Morbid (severe) obesity with alveolar hypoventilation
- E66.811Obesity, class 1
- E66.812Obesity, class 2
- E66.813Obesity, class 3
- E66.89Other obesity not elsewhere classified
- E66.9Obesity, unspecified
Documentation & coding notes
- E66.3 is a billable/specific ICD-10-CM code — it can be reported as a primary or secondary diagnosis when the documentation supports it. Code to the highest level of specificity the record allows.
- Always verify the code against the current ICD-10-CM Official Guidelines and the payer's coverage policy before submitting — coverage, medical necessity edits, and sequencing rules vary by payer.
Related E00–E89 codes
Questions about coding E66.3?
Ask D3 — free AI backed by CMS, ICD-10-CM, and major-payer data. Get a cited answer in seconds, no signup.
Medical coding disclaimer
ICD-10-CM codes and descriptions shown are from the CMS FY2026 official code set and HCC mappings from the CMS-HCC V28 model (payment year 2026), shown for educational reference. Official Guidelines, payer coverage, medical-necessity edits, and sequencing rules vary. Always verify with the current ICD-10-CM Official Guidelines and the payer before submitting claims. D3rx is not responsible for coding or billing outcomes.