Unspecified diseases due to mycobacteria

This code represents a diagnosis of a mycobacterial infection where the specific type of mycobacterium or the exact disease it causes has not been identified or specified by the provider. It indicates the presence of a disease process attributed to mycobacteria, but without further diagnostic precision.

Use this code when documentation clearly states a disease is due to mycobacteria, but lacks specificity regarding the organism (e.g., atypical mycobacteria, M. avium complex, M. kansasii) or the resulting clinical syndrome (e.g., pulmonary disease, lymphadenitis). This typically occurs when initial diagnostic workup is incomplete or pending, or when the provider explicitly states "unspecified mycobacterial disease."

• Avoid using this code if a more specific mycobacterial disease or organism is documented (e.g., tuberculosis, leprosy, or a specific non-tuberculous mycobacterial infection).
• Query the provider for greater specificity if possible, as this code is often a placeholder for more definitive diagnoses.
• Do not confuse with codes for specific types of tuberculosis (010-018) or other specified mycobacterial diseases (e.g., 031.0-031.8).