Patient was admitted to the hospital with shortness of breath, tests showed elevated troponin. He has a history of old infarct involving old inferoapical area.
Doctor had the dx of NSTEMI, Type 2. Cath a few days later showed mild diffuse disease of LAD, RCA, and circumflex artery.

Patient came back to our clinic 27 days after hospitalization, initial dx of NSTEMI.
Doctor had dx CAD.

Coder came back saying that she will be coding it still as NSTEMI and complaining why the doctor never mentioned it is still NSTEMI.
She also said that if patient has angina, she would need to code it as post infarction angina.
Doctor had explained that medically post infarction angina is a rare occurrence in 10-15% of cases.

I felt like CAD w stable angina I25.118 as documented is more appropriate.

The doctor has felt that CAD would include the new mild arterial diseases and the old MI.

Is CAD appropriate to code?

Thanks for helping us learn something new every day.