Guided Notes

Coding Infections, Sepsis & Respiratory Disease

Organism codes, sepsis/severe sepsis/septic shock sequencing, HIV, COVID-19, pneumonia, influenza, COPD and asthma.

Infections and organisms

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Infection codes are either combination codes (organism + site, e.g. J13 pneumonia due to Streptococcus pneumoniae) or need a separate organism code from B95–B97: • UTI with E. coli → N39.0 + B96.20. • MRSA infection: combination codes where they exist (e.g. A41.02 MRSA sepsis, J15.212 MRSA pneumonia), otherwise the infection + B95.62. • Carrier/colonization (MRSA screening positive, no infection) → Z22.322.

The organism must be documented by the provider, not taken from lab results alone.

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