ICD10Check
CheckerBrowseOpen

R59

⚠ Non-billable (Header)

Enlarged lymph nodes

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

⚠️ This is a category header code — not billable. Use a more specific child code below.

Check This Code

✅ Includes

  • • swollen glands

❌ Excludes1

direct

Cannot be coded with R59

  • • lymphadenitis NOS (I88.9)
  • • acute lymphadenitis (L04.-)
  • • chronic lymphadenitis (I88.1)
  • • mesenteric (acute) (chronic) lymphadenitis (I88.0)

Child Codes (3)

R59.0Localized enlarged lymph nodesR59.1Generalized enlarged lymph nodesR59.9Enlarged lymph nodes, unspecified

🧪 Validate Combinations

Add R59 to the Excludes Checker to validate against your full code list.

Open in Checker →

Code Information

CodeR59
BillableNo — Header code
CategorySymptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R99)
Excludes14 rule(s)
Excludes20 note(s)
Child codes3

Data Source

CMS ICD-10-CM 2026 Tabular List

Updated October 1, 2025 (FY2026)