R63.0

Billable

ChapterR00–R99

Ranksubcategory

Official Description

Anorexia

Metadata & Insights

•2026 ICD-10-CM Edition - Effective October 1, 2025.
•Billable/specific code (valid for reimbursement).
•Chapter 18: Symptoms, Signs and Abnormal Clinical and Laboratory Findings (R00-R99).

Instructional Notes

Includes

Loss of appetite

Excludes1(Not coded here)

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

General instructions are available for the parent sections:

View CH18 Notes View R63 Notes

Clinical Hierarchy

CH18Symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R99)

R50-R69General symptoms and signs (R50-R69)

R63Symptoms and signs concerning food and fluid intake

R63.0Anorexia

Applicable Ancestor Context

The following parent sections contain instructions or notes that apply to R63.0:

categoryR63

Symptoms and signs concerning food and fluid intake

View context instructions

chapterCH18

Symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R99)

View context instructions

Alphabetic Index Mentions

These are Diagnosis Index lookup paths that route to R63.0. Use them as entry terms for search, then confirm final coding instructions in the Tabular List and notes above.

5 raw paths

Anorexia1 unique routes

Direct index entry→R63.0

Appetite1 unique routes

lack or loss→R63.0

Dysorexia1 unique routes

Direct index entry→R63.0

Lack of1 unique routes

appetite (see Anorexia)→R63.0

Loss (of)1 unique routes

appetite (see Anorexia)→R63.0