ICD10Check
CheckerBrowseOpen

R59.1

✓ Billable

Generalized enlarged lymph nodes

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

Check This Code

Also Known As

Lymphadenopathy NOS

❌ Excludes1

inherited from R59

Rules from parent category R59: Enlarged lymph nodes

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

🧪 Validate Combinations

Add R59.1 to the Excludes Checker to validate against your full code list.

Open in Checker →

Code Information

CodeR59.1
BillableYes
ParentR59
CategorySymptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R99)
Excludes14 rule(s)
Excludes20 note(s)

Data Source

CMS ICD-10-CM 2026 Tabular List

Updated October 1, 2025 (FY2026)