ICD-10 R63.5
Billable / SpecificAbnormal weight gain
About ICD-10-CM R63.5
ICD-10-CM code R63.5 represents Abnormal weight gain. This is a billable/specific code in the Symptoms, Signs, and Abnormal Findings chapter (block R63). The 2026 edition of ICD-10-CM R63.5 became effective on October 1, 2025.
Type 1 Excludes
Pure excludes, these codes can never be coded together with R63.5. The conditions are mutually exclusive (e.g., congenital vs acquired forms).
- excessive weight gain in pregnancy (O26.0-)
- obesity (E66.-)
Medicare LCD Coverage for R63.5
Local Coverage Determinations (LCDs) from CMS MACs that list R63.5 as a covered diagnosis.
Showing top 7. Click a CPT for full coverage scope.
Commercial Payer Coverage
Coverage policies from major commercial payers referencing R63.5.
5 Medicare
1 Aetna
CPT Codes Commonly Billed with R63.5
Procedures frequently paired with this diagnosis based on PayerReady's Dx↔Px linkage data.
- 84443 TSH — hypothyroidism, hyperthyroidism, thyroiditis, weight loss, weight gain, post-surgical hypothyroidism, fatigue, routine exam, screening Laboratory
Convert R63.5 to ICD-9-CM
Per CMS General Equivalence Mappings (GEMs), useful for legacy data review and historical claim analysis.
| ICD-10 | ICD-9 | Mapping Flags |
|---|---|---|
| R63.5 | 7831 | 00000 |
Flags format (5 digits): Approximate · No Map · Combination · Scenario · Choice List. Source: CMS 2017 GEMs (final version).
Codes Adjacent To R63.5
Other codes in section R50-R69 (General symptoms and signs).
ICD-10 R63.5, Billing FAQ
Is ICD-10 code R63.5 billable? +
Yes, R63.5 is a billable ICD-10-CM code that can appear as a primary or secondary diagnosis on claims.
What codes are Type 1 Excludes for R63.5? +
Type 1 Excludes (never code together with R63.5): excessive weight gain in pregnancy (O26.0-); obesity (E66.-)
What CPT codes are commonly billed with R63.5? +
Procedures frequently paired with R63.5 include: 84443.
What ICD-9 codes does R63.5 map to? +
Per CMS GEMs, R63.5 maps to ICD-9 codes: 7831. Useful for legacy data review and historical claim analysis.
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Reviewed by the PayerReady Medical Coding Team
Verified against the CMS 2026 code set on July 16, 2026.
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