Is F50.011 a billable ICD-10-CM code?

Yes. F50.011 is a billable, specific ICD-10-CM code and is valid for submission on a claim.

Where does F50.011 sit in the tabular list?

Mental, Behavioral and Neurodevelopmental disorders (F01-F99), in the block Behavioral syndromes associated with physiological disturbances and physical factors (F50-F59).

What cannot be coded together with F50.011?

F50.011 carries Excludes1 notes, which means the conditions they list can never be coded together with it on the same encounter. Some are written on the categories above F50.011 (F50.0, F50) and apply to it just the same.

F50.011

F50.011 — Anorexia nervosa, restricting type, moderate

Billable / specific codeICD-10-CM

F50.011 is a billable, specific ICD-10-CM code for anorexia nervosa, restricting type, moderate. It is valid for submission on a claim.

Inclusion terms

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

Anorexia nervosa, restricting type, with a body mass index of 16.0-16.99 kg/m2

Excludes1 inherited from the categories above F50.011

These are not written on F50.011, but they bind it: a note on a category applies to every code beneath it. Billing F50.011 with anything listed here is a denial.

Written on F50.0 — Anorexia nervosa

loss of appetite (R63.0)
psychogenic loss of appetite (F50.89)

Written on F50 — Eating disorders

anorexia NOS (R63.0)
feeding problems of newborn (P92.-)
polyphagia (R63.2)

Excludes2 inherited from the categories above F50.011

Also inherited, and the opposite of Excludes1: these conditions are not part of F50.011, but a patient can have both, so you may code both.

Written on F50 — Eating disorders

feeding difficulties (R63.3-)
feeding disorder in infancy or childhood (F98.2-)

Other codes that can never be billed with F50.011

These codes carry an Excludes1 note pointing at F50.011. The conflict binds both ways, but ICD-10-CM only writes it down on one side — so you would not find this by reading F50.011 alone.

Z72.4Inappropriate diet and eating habits
P92Feeding problems of newborn

Risk adjustment

F50.011 risk-adjusts. Under the CMS-HCC V28 model it maps to these categories:

HCC 153 Personality Disorders; Anorexia/Bulimia Nervosa0.396 RAF
HCC 153 Personality Disorders; Anorexia/Bulimia Nervosa0.396 RAF

Coefficient shown for the Community Non-dual Aged segment. A higher HCC in the same hierarchy will suppress this one, so capturing it does not always add score.

Medicare coverage

F50.011 is named in 16 Medicare coverage policies — 15 listing it as supporting medical necessity, and 1 listing it as NOT covered. Which of them applies to you depends on your Medicare contractor, and coverage genuinely differs by state.

A52434Health and Behavior Assessment/Intervention – Medical Policy Articlenot covered
A56614Billing and Coding: Psychiatric Inpatient Hospitalization
A56685Billing and Coding: Partial Hospitalization Programs
A56850Billing and Coding: Psychiatric Partial Hospitalization Programs

Code history

What changed, and when. Derived by diffing consecutive CMS release files — which matters when you are defending a code assigned under an earlier edition.

addedFY2024-FY2026
Anorexia nervosa, restricting type, moderate

Related codes at this level

Codes that share F50.01. If F50.011 is not quite right, the correct code is usually one of these.

Questions about F50.011

Is F50.011 a billable ICD-10-CM code?: Yes. F50.011 is a billable, specific ICD-10-CM code and is valid for submission on a claim.
Where does F50.011 sit in the tabular list?: Mental, Behavioral and Neurodevelopmental disorders (F01-F99), in the block Behavioral syndromes associated with physiological disturbances and physical factors (F50-F59).
What cannot be coded together with F50.011?: F50.011 carries Excludes1 notes, which means the conditions they list can never be coded together with it on the same encounter. Some are written on the categories above F50.011 (F50.0, F50) and apply to it just the same.