Is R63.0 a billable ICD-10-CM code?

Yes. R63.0 is a billable, specific ICD-10-CM code and is valid for submission on a claim.

Where does R63.0 sit in the tabular list?

Symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R99), in the block General symptoms and signs (R50-R69).

What cannot be coded together with R63.0?

R63.0 carries an Excludes1 note, which means the conditions it lists can never be coded together with it on the same encounter.

R63.0

R63.0 — Anorexia

Billable / specific codeICD-10-CM

R63.0 is a billable, specific ICD-10-CM code for anorexia. It is valid for submission on a claim.

Excludes1 — never code together

These conditions cannot occur together. Billing both on the same encounter is a denial.

anorexia nervosa (F50.0-)
loss of appetite of nonorganic origin (F50.89)

Inclusion terms

Alternative wordings a physician may use in the chart for this same code.

Loss of appetite

Other codes that can never be billed with R63.0

These codes carry an Excludes1 note pointing at R63.0. The conflict binds both ways, but ICD-10-CM only writes it down on one side — so you would not find this by reading R63.0 alone.

F50Eating disorders
F50.0Anorexia nervosa

Risk adjustment

R63.0 does not map to an HCC and does not risk-adjust under CMS-HCC V28. That is normal — most ICD-10 codes do not. It still needs to be coded correctly; it just will not move a RAF score.

Medicare coverage

R63.0 is named in 5 Medicare coverage policies — 5 listing it as supporting medical necessity. Which of them applies to you depends on your Medicare contractor, and coverage genuinely differs by state.

A56389Billing and Coding: Upper Gastrointestinal Endoscopy and Visualization
A57063Billing and Coding: Diagnostic and Therapeutic Esophagogastroduodenoscopy
A57189Billing and Coding: Serum Magnesium
A57414Billing and Coding: Upper Gastrointestinal Endoscopy (Diagnostic and Therapeutic)

How R63.0 is indexed

Coders do not find codes by browsing the tabular list — they look them up in the alphabetic index, under the word the physician wrote. These are the index entries that lead here, so you can see which chart wordings map to R63.0.

Anorexia
Dysorexia
Appetite›lack or loss
Lack of›appetite(see Anorexia)
Loss›appetite(see Anorexia)

Related codes at this level

Codes that share R63. If R63.0 is not quite right, the correct code is usually one of these.

Questions about R63.0

Is R63.0 a billable ICD-10-CM code?: Yes. R63.0 is a billable, specific ICD-10-CM code and is valid for submission on a claim.
Where does R63.0 sit in the tabular list?: Symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R99), in the block General symptoms and signs (R50-R69).
What cannot be coded together with R63.0?: R63.0 carries an Excludes1 note, which means the conditions it lists can never be coded together with it on the same encounter.