ICD-10 R59.0
Billable / SpecificLocalized enlarged lymph nodes
About ICD-10-CM R59.0
ICD-10-CM code R59.0 represents Localized enlarged lymph nodes. This is a billable/specific code in the Symptoms, Signs, and Abnormal Findings chapter (block R59). The 2026 edition of ICD-10-CM R59.0 became effective on October 1, 2025.
Medicare LCD Coverage for R59.0
Local Coverage Determinations (LCDs) from CMS MACs that list R59.0 as a covered diagnosis.
Showing top 10 of 174 total . Click a CPT for full coverage scope.
Commercial Payer Coverage
Coverage policies from major commercial payers referencing R59.0.
2 Cigna
5 Medicare
1 Aetna
CPT Codes Commonly Billed with R59.0
Procedures frequently paired with this diagnosis based on PayerReady's Dx↔Px linkage data.
- 76942 Ultrasound-guided thyroid biopsy — thyroid nodule, multinodular goiter, hyperthyroidism, thyroiditis, thyroid cancer, thyroid neoplasm, lymphadenopathy, abnormal thyroid function Endocrinology
Convert R59.0 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 |
|---|---|---|
| R59.0 | 7856 | 10000 |
Flags format (5 digits): Approximate · No Map · Combination · Scenario · Choice List. Source: CMS 2017 GEMs (final version).
Codes Adjacent To R59.0
Other codes in section R50-R69 (General symptoms and signs).
ICD-10 R59.0, Billing FAQ
Is ICD-10 code R59.0 billable? +
Yes, R59.0 is a billable ICD-10-CM code that can appear as a primary or secondary diagnosis on claims.
What CPT codes are commonly billed with R59.0? +
Procedures frequently paired with R59.0 include: 76942.
What ICD-9 codes does R59.0 map to? +
Per CMS GEMs, R59.0 maps to ICD-9 codes: 7856. 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 May 31, 2026.
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