Acute rheumatic fever (I00-I02)

ICD-10 codes I00-I02 specifically categorize acute rheumatic fever, distinguishing cases based on whether the heart is affected. These codes cover a spectrum from rheumatic fever without heart involvement to various forms of acute rheumatic heart disease and rheumatic chorea.

This range begins with I00, used for acute rheumatic fever without heart involvement, also known as migratory polyarthritis or erythema marginatum. Codes from I01 address acute rheumatic fever when the heart is involved, including conditions like acute rheumatic pericarditis (I01.0), endocarditis (I01.1), and myocarditis (I01.2). These specify inflammation of different heart layers during rheumatic fever. Code I01.8 captures other specified acute rheumatic heart diseases, and I01.9 is used when the heart condition is unspecified. Additionally, I02 covers rheumatic chorea, a neurological disorder linked with rheumatic fever, with subcodes differentiating cases with or without heart involvement. Recognizing terms such as rheumatic arthritis or autoimmune movement disorder helps coders assign these codes accurately for both cardiac and neurological sequelae following a streptococcal infection.