ICD-10-CM · Chapter 18 · R00-R99
R59 Enlarged lymph nodes
Includes
- swollen glands
Excludes 1 (cannot be coded together)
- lymphadenitis NOS (I88.9)
- acute lymphadenitis (L04.-)
- chronic lymphadenitis (I88.1)
- mesenteric (acute) (chronic) lymphadenitis (I88.0)
Subcodes
Subcodes are listed below for reference. Detail pages are not available for chapters 11–22.
| Code | Description | Billable |
|---|---|---|
| R59..0 | Localized enlarged lymph nodes | Yes |
| R59..1 | Generalized enlarged lymph nodes | Yes |
| R59..9 | Enlarged lymph nodes, unspecified | Yes |
Plain-language term for this code
The following entry in the US Medical Glossary corresponds to ICD-10-CM category R59:
- Lymph Node Swelling — Inflamación de los ganglios linfáticos
Last reviewed: September 2026