ICD-10-CM 2027 diagnosis code

R63Symptoms and signs concerning food and fluid intake

Not billable — use a more specific code

R63 is a header code, so it can't be reported by itself. Choose one of the 8 more specific codes beneath it.

Code unchanged since ICD-10-CM took effect on October 1, 2015. Source: official FY2027 ICD-10-CM release from CDC/NCHS and CMS. Page updated September 29, 2026. About our data

About R63

R63 is the ICD-10-CM diagnosis code for symptoms and signs concerning food and fluid intake. It belongs to block R50-R69 (general symptoms and signs) and chapter 18 (symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified). It is a header code, so it can't be reported by itself; one of its 8 subcodes must be used instead.

To report this condition, pick the subcode that matches the documentation: R63.0 (Anorexia), R63.1 (Polydipsia), R63.2 (Polyphagia), R63.3 (difficulties), R63.4 (loss), R63.5 (gain), R63.6 (Underweight) and R63.8 (intake).

Don't report R63 together with the conditions in its Excludes1 note: bulimia NOS (F50.2-).

It has been part of ICD-10-CM since the code set took effect on October 1, 2015 and hasn't changed since.

Specific codes under R63

Coding notes

Excludes1Not coded here — never report together with this code

bulimia NOS (F50.2-)

Notes that apply from higher levels

Instructions written at a parent level also apply to R63.

Broader instructions also apply from Chapter 18: Symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified.

Code history

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2027

FY2016 (effective 10/1/2015): Added (first year of ICD-10-CM)
No changes since FY2016.

Common questions about R63

Is R63 billable?: No. R63 is a header code. Report one of its more specific subcodes instead.