ICD-9 Code 017.21 - Tuberculosis of peripheral lymph nodes, bacteriological or histological examination not done

ICD-9-CM Diagnosis Code 017.21

Diagnosis Code: 017.21 (Raw: 01721)

Description: Tuberculosis of peripheral lymph nodes, bacteriological or histological examination not done

Classification: International Classification of Diseases, Ninth Revision, Clinical Modification (ICD-9-CM)

Fiscal Year: 2026 Reference

CMS Section 111 Status: Valid for reporting.

Overview & Historical Usage

ICD-9-CM code 017.21 is designated for Tuberculosis of peripheral lymph nodes, bacteriological or histological examination not done. While superseded by ICD-10 for current healthcare encounters, it remains a recognized reference code for CMS Section 111 reporting, legacy claims adjudication, and historical clinical data analysis.