R59.0 – Localized enlarged lymph nodes
ICD-10-CM 2027 diagnosis code · General symptoms and signs
ICD-10-CM code
R59.0
- Code
R59.0(claims format:R590)- Description
- Localized enlarged lymph nodes
- Billable
- Yes – valid for HIPAA-covered transactions
- Valid for
- Dates of service October 1, 2026 – September 30, 2027 (FY2027)
- Chapter
- 18. Symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R99)
- Block
- R50-R69 General symptoms and signs
- Parent codes
- R59
Notes inherited from parent codes
Instructional notes at a category or block level apply to every code below it.
R59 – Enlarged lymph nodes
Includes:
- swollen glands
Index terms for R59.0
Entries in the ICD-10-CM alphabetic index that lead to this code:
- Adenopathy, inguinal
- Adenopathy, localized
- Adenopathy, mesentery
- Adenopathy, mediastinal
- Swelling, cervical gland
- Lymphadenopathy, localized
- Swelling, glands, localized
- Adenopathy, tracheobronchial
- Hypertrophy, hypertrophic, hilus gland
- Hyperplasia, hyperplastic, cervical gland
- Enlargement, enlarged, lymph gland or node, localized
- Hypertrophy, hypertrophic, gland, glandular, localized
- Hypertrophy, hypertrophic, lymph, lymphatic gland, localized
Related codes in R59
Frequently asked questions
What is ICD-10 code R59.0?
R59.0 is the ICD-10-CM code for localized enlarged lymph nodes, in the block R50-R69 (General symptoms and signs).
Is R59.0 a billable code?
Yes. R59.0 is a billable/specific code that can be used to indicate a diagnosis for reimbursement purposes.
What category does R59.0 belong to?
It belongs to category R59 – Enlarged lymph nodes.
Source: CDC/NCHS ICD-10-CM FY2027 code files, tabular list and index. Reference only – code assignment must follow the official ICD-10-CM guidelines and documentation in the medical record.