ICD-10-CM
ICD-10 code for Spasm (s), spastic, spasticity cardiac: I20.1
The ICD-10-CM index points "Spasm (s), spastic, spasticity cardiac" to I20.1, Angina pectoris with documented spasm. I20.1 is a billable code.
Source: CDC ICD-10-CM FY2027 Alphabetic Index file dated June 16, 2026. Publisher page
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