Find comprehensive information on Mycobacterium avium complex MAC diagnosis including clinical documentation requirements ICD 10 codes and SNOMED CT terminology. Learn about MAC infection symptoms treatment and diagnostic testing for accurate medical coding and improved healthcare outcomes. This resource offers guidance for clinicians on documenting MAC disease including pulmonary and disseminated infections for proper billing and reimbursement. Explore resources related to MAC prophylaxis and management strategies.
Also known as
Pulmonary mycobacterial diseases
Covers lung infections caused by Mycobacterium avium complex (MAC).
Other specified abnormal findings of blood chemistry
May be used for disseminated MAC infection affecting multiple organ systems.
Other specified bacterial agents as the cause of diseases classified elsewhere
Can capture MAC infections impacting locations beyond the lungs.
Follow this step-by-step guide to choose the correct ICD-10 code.
Is the MAC infection pulmonary?
When to use each related code
| Description |
|---|
| Mycobacterium avium complex lung disease |
| Lady Windermere syndrome |
| Nontuberculous mycobacterial lung disease |
Inaccurate coding of MAC (Mycobacterium avium complex) infections, differentiating between pulmonary and disseminated disease (A31.0 vs. A31.8).
Insufficient documentation to support MAC diagnosis specificity for coding and reimbursement, impacting CDI efforts.
Risk of audits focusing on MAC cases due to coding complexity and potential overpayments for lacking documentation.
Patient presents with signs and symptoms suggestive of Mycobacterium avium complex (MAC) infection. Clinical presentation includes chronic cough, fatigue, weight loss, night sweats, and low-grade fever. Pulmonary MAC disease is suspected, given the patient's respiratory symptoms and history of underlying lung diseasebronchiectasis. Sputum samples have been collected for acid-fast bacilli (AFB) smear and culture, and further diagnostic testing, including chest X-ray and high-resolution computed tomography (HRCT) of the chest, is ordered to evaluate for pulmonary infiltrates, nodules, or cavitary lesions consistent with MAC lung disease. Differential diagnosis includes other nontuberculous mycobacterial (NTM) infections, tuberculosis, and fungal infections. Patient's medical history includes COPD, increasing the risk for NTM pulmonary infections. Treatment for disseminated MAC infection or pulmonary MAC disease, if confirmed, will be considered based on culture results, disease severity, and symptom burden, and may include a macrolide antibiotic such as azithromycin or clarithromycin, ethambutol, and rifampin, in accordance with current ATSID guidelines. Patient education regarding medication adherence, potential side effects, and the importance of follow-up care will be provided. ICD-10 code A31.0 for pulmonary MAC and appropriate SNOMED CT codes will be used for documentation and billing purposes. The patient will be monitored for treatment response and potential adverse drug reactions.