ICD-10 Code I20.8 – Other forms of angina pectoris (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code I20.8 – Other forms of angina pectoris
What it is
I20.8 identifies angina pectoris that does not fit the more specific ICD-10 categories. Use it for documented angina when the record describes an atypical or other specified form of chest pain due to ischemia.
Clinical signs
Clinical features vary; refer to documentation. Angina is typically described as chest discomfort, pressure, or tightness related to reduced blood flow to the heart, often occurring with exertion or stress and improving with rest.
When to use this code
Use I20.8 when the provider documents angina pectoris but does not specify unstable, variant, or other coded subtypes. It is appropriate when the note clearly supports an “other” form of angina and no more specific code applies. Check documentation if the type is unclear.
Do not use for
Do not use this code for unstable angina, vasospastic angina, or angina that is better classified elsewhere. If the chart only says chest pain without a diagnosis of angina, code the symptom instead.
Coding tip
Code the most specific angina type documented, and query the provider if the record only says “angina” or gives an unclear subtype.