Healther Providers Data Logo


Diagnosis Code

R63.6 UNDERWEIGHT


Code Information

Diagnosis Code: R63.6

Short Description: Underweight

Long Description: Underweight

The code R63.6 is VALID for claim submission

Code Classification:

  • Symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00–R99)
    • General symptoms and signs (R50-R69)
      • Symptoms and signs concerning food and fluid intake (R63)
        • R63.6 Underweight

Code Version: 2022 ICD-10-CM


Synonyms

  • Anorexia nervosa
  • Anorexia nervosa
  • Anorexia nervosa
  • Anorexia nervosa
  • Anorexia nervosa
  • Anorexia nervosa
  • Anorexia nervosa co-occurrent with dangerously low body weight
  • Anorexia nervosa co-occurrent with significantly low body weight
  • Anorexia nervosa, binge-eating purging type
  • Anorexia nervosa, binge-eating purging type
  • Anorexia nervosa, restricting type
  • Anorexia nervosa, restricting type
  • Dangerously low body weight co-occurrent and due to anorexia nervosa of binge-eating purging type
  • Dangerously low body weight co-occurrent and due to anorexia nervosa of restricting type
  • Mild thinness in adulthood
  • Moderate thinness in adulthood
  • Severe thinness in adulthood
  • Significantly low body weight co-occurrent and due to anorexia nervosa of binge-eating purging type
  • Significantly low body weight co-occurrent and due to anorexia nervosa of restricting type
  • Thin build
  • Thin build
  • Thin build
  • Thin build in adult
  • Thin build in adult
  • Thin build in adult
  • Underweight
  • Underweight in adolescence
  • Underweight in childhood
  • Underweight in infancy

Diagnostic Related Group(s)

The code R63.6 is grouped in the following Diagnostic Related Group(s) (MS-DRG v39.0)
  • Miscellaneous Disorders Of Nutrition, Metabolism, Fluids And Electrolytes With Mcc (640)
  • Miscellaneous Disorders Of Nutrition, Metabolism, Fluids And Electrolytes Without Mcc (641)

References to Index of Diseases and Injuries

The code R63.6 has the following ICD-10-CM references to the Index of Diseases and Injuries
  • Type 1 Excludes Notes:
    • abnormal weight loss (@R63.4*)
    • anorexia nervosa (@F50.0*-)
    • malnutrition (@E40*-@E46*)

Crosswalk Information

ICD-10 Code ICD-9 Code ICD-9 Description
R63.6 Right Arrow 783.22 Underweight

This ICD-10 to ICD-9 data is based on the 2018 General Equivalency Mapping (GEM) files published by the Centers for Medicare & Medicaid Services (CMS) for informational purposes only. The data is not an ICD-10 conversion tool and doesn’t guarantee clinical accuracy.

Similar Codes

ICD-10 Code ICD-10 Description
R63 Symptoms and signs concerning food and fluid intake
R63.0 Anorexia
R63.1 Polydipsia
R63.2 Polyphagia
R63.3 Feeding difficulties
R63.30 Feeding difficulties, unspecified
R63.31 Pediatric feeding disorder, acute
R63.32 Pediatric feeding disorder, chronic
R63.39 Other feeding difficulties
R63.4 Abnormal weight loss
R63.5 Abnormal weight gain
R63.8 Other symptoms and signs concerning food and fluid intake

This page was last updated on: 10/1/2023

« Previous Code
Next Code »