Myocarditis due to toxoplasmosis

This code signifies inflammation of the heart muscle (myocarditis) specifically caused by an infection with the parasite Toxoplasma gondii. It represents a specific etiology for myocarditis, distinguishing it from other infectious or non-infectious causes.

Apply this code when documentation clearly states myocarditis and identifies toxoplasmosis as the causative agent. This typically occurs in immunocompromised individuals or those with acute toxoplasmosis infection. Supporting documentation would include positive serology for Toxoplasma gondii or histological findings confirming parasitic presence in myocardial tissue.

• Always sequence this code after the underlying toxoplasmosis infection (e.g., 130.0-130.9) if the infection is still active and being treated.
• Do not use this code for myocarditis due to other parasitic infections; ensure the documentation explicitly links toxoplasmosis as the cause.
• Verify that the documentation specifies "myocarditis" and not just general cardiac involvement in toxoplasmosis, such as pericarditis or endocarditis.