Symptoms and signs concerning food and fluid intake (R63) ICD-10-CM
The R63 code range covers symptoms and signs concerning food and fluid intake with 13 ICD-10-CM diagnosis codes. 11 of them are billable and valid for claim submission in fiscal year 2027, and the category headers group them but cannot themselves be billed.
Type 1 Excludes
A type 1 excludes note is a pure excludes note. It means "NOT CODED HERE!" An Excludes1 note indicates that the code excluded should never be used at the same time as the code above the Excludes1 note. An Excludes1 is used when two conditions cannot occur together, such as a congenital form versus an acquired form of the same condition.
- bulimia NOS F50.2
Codes in the R63 Range 13 codes · 11 billable
- R63 Symptoms and signs concerning food and fluid intakeNon-billable
- R63.0 Anorexia
- R63.1 Polydipsia
- R63.2 Polyphagia
- R63.3 Feeding difficultiesNon-billable
- 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
- R63.6 Underweight
- R63.8 Other symptoms and signs concerning food and fluid intake
Clinical Terms in This Code Range
Definitions from the National Library of Medicine for conditions coded in the R63 range.
Abnormal Weight Loss
Unexplained or unintentional weight loss.
Anorexia
The lack or loss of APPETITE accompanied by an aversion to food and the inability to eat. It is the defining characteristic of the disorder ANOREXIA NERVOSA.
Hyperphagia
Ingestion of a greater than optimal quantity of food.
Polydipsia
Excessive thirst manifested by excessive fluid intake. It is characteristic of many diseases such as DIABETES MELLITUS; DIABETES INSIPIDUS; and NEPHROGENIC DIABETES INSIPIDUS. The condition may be psychogenic in origin.
About the R63 Code Range
Changes in appetite or thirst, feeding difficulties, and weight findings appear here as symptoms or signs.
Within R63, separate subdivisions describe appetite and thirst, feeding difficulties, and weight loss, gain, or underweight. The feeding difficulties branch distinguishes unspecified difficulties from pediatric feeding disorders, which split into acute and chronic forms.
R63.8 describes other symptoms and signs concerning food and fluid intake.
Questions About This Page
How many billable codes are in the R63 range?
Of the 13 codes in this range, 11 are billable and valid for claim submission from October 1, 2026 through September 30, 2027. Category header codes group them but cannot be reported on claims.
What does the R63 range classify?
The range classifies symptoms and signs concerning food and fluid intake. Each code links to its own reference page with billing status, MS-DRG grouping, coding notes, and clinical information.
Related References
Source: CMS FY 2027 ICD-10-CM Tabular List and order file, effective October 1, 2026 through September 30, 2027.
