ICD-10-CM R59: Enlarged lymph nodes

ICD-10-CM Diagnosis Code (2025)

Official Description for R59

Enlarged lymph nodes

Coding Notes & Guidelines for R59

Includes Notes

swollen glands

Excludes1: Not Coded Here
  • lymphadenitis NOS (I88.9)
  • acute lymphadenitis (L04.-)
  • chronic lymphadenitis (I88.1)
  • mesenteric (acute) (chronic) lymphadenitis (I88.0)
Inclusion Terms

Lymphadenopathy NOS

Child Codes (More Specific Codes for R59):

About ICD-10-CM Code R59 (Enlarged lymph nodes)

ICD-10-CM code R59 is a billable or specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes. The 2025 edition of ICD-10-CM R59 became effective on October 1, 2024.

This page provides detailed information about R59 - Enlarged lymph nodes. It includes common terminology, coding guidelines such as "Includes," "Excludes1," and "Excludes2" notes, and information on required 7th characters. Utilizing this information correctly is essential for accurate medical coding and claims submission for conditions like Enlarged lymph nodes.