ICD-10-CM 2027
ICD-10 code for Overeating
From the official ICD-10-CM alphabetic index entry “Overeating”. Page updated September 29, 2026.
About coding Overeating
The ICD-10-CM code for Overeating is R63.2 (Polyphagia). The official index lists 2 more specific codes, so check the documentation for details such as type, cause, site or severity before settling on R63.2.
Within R63 (symptoms and signs concerning food and fluid intake), R63.2 is specifically for Polyphagia. Related codes cover Anorexia (R63.0), Polydipsia (R63.1), feeding difficulties (R63.3), abnormal weight loss (R63.4), abnormal weight gain (R63.5), Underweight (R63.6) and other symptoms and signs concerning food and fluid intake (R63.8).
It is not a CC or MCC, so as a secondary diagnosis it doesn't change the MS-DRG severity level.
In MS-DRG v44.0, it is part of the grouping logic for DRG 640 (Miscellaneous Disorders of Nutrition, Metabolism, Fluids and Electrolytes with MCC, relative weight 1.3395) and DRG 641 (Miscellaneous Disorders of Nutrition, Metabolism, Fluids and Electrolytes without MCC, relative weight 0.7865), in MDC 10 (Endocrine, Nutritional and Metabolic Diseases and Disorders), as a principal or secondary diagnosis. The DRG a claim lands in depends on the principal diagnosis, procedures and any CC/MCC secondary diagnoses.
More specific Overeating codes (official index)
Common questions about Overeating ICD-10 codes
What is the ICD-10 code for Overeating?
- R63.2 — Polyphagia. More specific codes apply when the documentation supports them: F50.89, F50.89.
What is the ICD-10 code for nonorganic origin overeating?
- F50.89 — Other specified eating disorder.
What is the ICD-10 code for psychogenic overeating?
- F50.89 — Other specified eating disorder.
Is R63.2 billable?
- Yes. R63.2 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).
Can R63.2 be used as a principal diagnosis?
- Yes. The Medicare Code Editor doesn't restrict R63.2 as a principal diagnosis.
Is R63.2 a CC or MCC?
- No. R63.2 is neither a CC nor an MCC under MS-DRG v44.0.