R63.0 ICD-10-CM Code: Anorexia
R63.0 is not a CMS-HCC payment code. MEAT criteria · RAF calculator · free HCC coding tools
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FY 2026 Apr update / Symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R99) / General symptoms and signs (R50-R69)
R63.0
Billable / SpecificICD-10-CMOfficial ICD-10-CMCodebook guidanceAnorexia
Loss of appetite or lack of desire to eat, which can result from various medical conditions, medications, or psychological factors.
CMS-HCC V28
N/A—
Not mapped
CMS-HCC V24
N/A—
Not mapped
ACA/HHS
N/A—
Not mapped
ESRD/PACE
N/A—
Not mapped
RXHCC
N/A—
Not mapped
Code Book Path
Inclusion Terms
Official- Loss of appetite
Excludes 2
OfficialICD-10-CM does not list Excludes 2 notes for R63.0 in this effective period.
Related Child Codes
Includes
OfficialICD-10-CM does not list Includes notes for R63.0 in this effective period.
Excludes 1
Official- anorexia nervosa (F50.0-)
- loss of appetite of nonorganic origin (F50.89)
Code First
OfficialICD-10-CM does not list Code First sequencing instructions for R63.0 in this effective period.
Use Additional
OfficialICD-10-CM does not list Use Additional Code instructions for R63.0 in this effective period.
Code Also
OfficialICD-10-CM does not list Code Also instructions for R63.0 in this effective period.
Buddy Documentation Tip
Current with CMS: FY2026 ICD-10-CM Apr 1 update (effective Apr 1 – Sep 30, 2026) · CMS-HCC V28, 100% phased in for payment year 2026. FY2027 code set already staged for October 1, 2026. How HCC Buddy stays current →
Is R63.0 an HCC code?
No. R63.0 is a billable ICD-10-CM code but does not map to any HCC category in V28, V24, ESRD, or RxHCC.
- Code
- R63.0
- Description
- Anorexia
- HCC (V28)
- No CMS-HCC V28 mapping
- RAF
- —
- Billable
- Yes
- Payment year
- 2026
Coder workflow notes
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This code does not map to an HCC category in any model (V28, V24, ESRD, RxHCC).
What This Code Means
R63.0 is the ICD-10-CM diagnosis code for anorexia. Loss of appetite or lack of desire to eat, which can result from various medical conditions, medications, or psychological factors. R63.0 sits in the ICD-10-CM chapter for symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (r00-r99), within the section covering general symptoms and signs (r50-r69).
R63.0 is a billable ICD-10-CM code but does not map to a payment HCC under the CMS-HCC V28, V24, ESRD, or RxHCC risk adjustment models. It can be reported on Medicare Advantage encounter data submissions but it does not contribute to a beneficiary's RAF score and therefore does not affect risk-adjusted payments to the plan.
Document whether anorexia is related to a specific condition (cancer, depression, medication side effect) for complete clinical picture.
HCC Buddy maintains structured V28 and V24 mapping, RAF weights, and MEAT documentation criteria for R63.0 sourced directly from the CMS-HCC risk adjustment model files and the CMS ICD-10-CM code set.
Coding Tips
- •Document whether anorexia is related to a specific condition (cancer, depression, medication side effect) for complete clinical picture
- •Do not confuse with anorexia nervosa (F50.01), which is a psychiatric eating disorder