Billable / Specific Code
ICD-10-CM R59.9 is the diagnosis code for Enlarged lymph nodes, unspecified. This code falls under the section "General symptoms and signs" within Chapter 18 — Symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R99). It is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes. Medical coders and healthcare providers use this code to document and classify diagnoses in electronic health records, insurance claims, and clinical databases.
Always refer to the official ICD-10-CM Tabular List for complete coding guidelines. Ensure documentation supports the specificity of the code selected. When in doubt, consult a certified medical coder or the latest CMS guidelines.
Understanding where R59.9 sits in the ICD-10-CM classification helps ensure proper coding:
Yes, R59.9 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
R59.9 is the ICD-10-CM diagnosis code for "Enlarged lymph nodes, unspecified". It is used by healthcare providers to classify and document this condition in medical records and insurance claims.
The parent code of R59.9 is R59 ("Enlarged lymph nodes"). R59.9 provides a more specific classification within this category.
R59.9 is located in Section R50-R69 — "General symptoms and signs" within Chapter 18 of the ICD-10-CM Tabular List.
Use R59.9 when the patients documented diagnosis matches "Enlarged lymph nodes, unspecified" and the clinical documentation supports this level of specificity. Always verify with the latest ICD-10-CM guidelines and payer requirements.
The ICD-10-CM code for Enlarged lymph nodes, unspecified is R59.9.
Yes, R59.9 can be used as a primary diagnosis code since it is billable and specific.
R59.9 is in Chapter 18 of the ICD-10-CM Tabular List.
Yes, R59.9 is a valid ICD-10-CM code for the 2026 fiscal year, subject to official CMS updates.