All ICD10 Codes

R59

Non-Billable
ChapterR00–R99
Rankcategory
Official Description

Enlarged lymph nodes

Use a more specific code (3 billable)
R59.0Localized enlarged lymph nodesR59.1Generalized enlarged lymph nodesR59.9Enlarged lymph nodes, unspecified
Metadata & Insights
  • •Non-billable category (requires more specific sub-code).
  • •Chapter 18: Symptoms, Signs and Abnormal Clinical and Laboratory Findings (R00-R99).

CH18 Parent Instructions

Excludes2(Not included here. Code separately if applicable.)
  • abnormal findings on antenatal screening of mother (O28.-)
  • certain conditions originating in the perinatal period (P04-P96)
  • signs and symptoms classified in the body system chapters
  • signs and symptoms of breast (N63, N64.5)

Instructional Notes

Includes
  • swollen glands
Excludes1(Not coded here. Use a different code.)
  • lymphadenitis NOS (I88.9)
  • acute lymphadenitis (L04.-)
  • chronic lymphadenitis (I88.1)
  • mesenteric (acute) (chronic) lymphadenitis (I88.0)

Clinical Hierarchy

BillableHas subcodes
CH18Symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R99)
R50-R69General symptoms and signs (R50-R69)
R59Enlarged lymph nodesNot billable
R59.0Localized enlarged lymph nodesBillable
R59.1Generalized enlarged lymph nodesBillable
R59.9Enlarged lymph nodes, unspecifiedBillable

Applicable Ancestor Context

The following parent sections contain instructions or notes that apply to R59:

chapterCH18
Symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R99)
View context instructions

MS-DRG Classification

2026

No direct MS-DRG triggers identified.

Cross Reference

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