Tuberculous peripheral lymphadenopathy

This code signifies tuberculosis affecting the lymph nodes located outside of the chest and abdomen. This includes palpable lymph nodes in areas such as the neck, axilla, or groin that are infected with Mycobacterium tuberculosis.

Apply this code when documentation confirms a diagnosis of tuberculosis specifically involving peripheral lymph nodes. This diagnosis is typically supported by biopsy results, positive cultures from lymph node aspirates, or clinical presentation highly suggestive of tuberculous lymphadenitis in peripheral sites.

• Differentiate from tuberculous involvement of intrathoracic or intra-abdominal lymph nodes, which are classified elsewhere.
• Ensure documentation specifies "peripheral" or a specific non-thoracic/non-abdominal lymph node site to support this code.
• Consider an additional code for the causative organism (e.g., B90.8 for sequelae of tuberculosis) if applicable and supported by documentation.