Angina, Unstable

**Definition:** Precordial pain at rest, which may precede a MYOCARDIAL INFARCTION.

**Tree numbers:** - C14.280.647.187.150 - C14.907.585.187.150 - C23.888.592.612.233.500.150

**Synonyms:** - Angina at Rest - Angina, Preinfarction - Unstable Angina - Angina Pectoris, Unstable