Z16.34Resistance to antimycobacterial drug(s)

Z16.34 is the ICD-10-CM diagnosis code for resistance to antimycobacterial drug(s). It belongs to category Z16 (resistance to antimicrobial drugs), block Z16 (resistance to antimicrobial drugs) and chapter 21 (factors influencing health status and contact with health services). It is a header code, so it can't be reported by itself; one of its 2 subcodes must be used instead.

Within Z16.3 (resistance to other antimicrobial drugs), Z16.34 is specifically for resistance to antimycobacterial drug(s). Related codes cover unspecified antimicrobial drugs (Z16.30), antiparasitic drug(s) (Z16.31), antifungal drug(s) (Z16.32), antiviral drug(s) (Z16.33), multiple antimicrobial drugs (Z16.35) and other specified antimicrobial drug (Z16.39).

To report this condition, pick the subcode that matches the documentation: Z16.341 (drug) and Z16.342 (drugs).

Code first: the infection.

It has been part of ICD-10-CM since the code set took effect on October 1, 2015 and hasn't changed since.