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ICD-10-CM Code I20.1
Angina pectoris with documented spasm

Billable Code
Billable codes are sufficient justification for admission to an acute care hospital when used a principal diagnosis.
Adult Only
Adult Only
Code is only used for patients 15 years old or older.
| ICD-10 from 2011 - 2016

I20.1 is a billable ICD code used to specify a diagnosis of angina pectoris with documented spasm. A 'billable code' is detailed enough to be used to specify a medical diagnosis.

The ICD code I201 is used to code Prinzmetal's angina

Prinzmetal's or Prinzmetal angina (/ˈprɪntsmɛtəl/, sounds like "prints metal") (also known as variant angina, angina inversa, or coronary vessel spasm) is a syndrome typically consisting of angina (cardiac chest pain) at rest that occurs in cycles. It is caused by vasospasm, a narrowing of the coronary arteries caused by contraction of the smooth muscle tissue in the vessel walls rather than directly by atherosclerosis (buildup of fatty plaque and hardening of the arteries).

Specialty: Cardiology
MeSH Code: D000788
ICD 9 Code: 413.1
Source: Wikipedia

Coding Notes for I20.1 Info for medical coders on how to properly use this ICD-10 code

Inclusion Terms:
Inclusion Terms
Inclusion Terms are a list of concepts for which a specific code is used. The list of Inclusion Terms is useful for determining the correct code in some cases, but the list is not necessarily exhaustive.
Angiospastic angina
Prinzmetal angina
Spasm-induced angina
Variant angina

MS-DRG Mapping

  • DRG Group #311 - Angina pectoris.

ICD-10-CM Alphabetical Index References for 'I20.1 - Angina pectoris with documented spasm'

The ICD-10-CM Alphabetical Index links the below-listed medical terms to the ICD code I20.1. Click on any term below to browse the alphabetical index.


Prinzmetal angina (exact match)

This is the official exact match mapping between ICD9 and ICD10, as provided by the General Equivalency mapping crosswalk. This means that in all cases where the ICD9 code 413.1 was previously used, I20.1 is the appropriate modern ICD10 code.

Parent Code: I20 - Angina pectoris

** This Document Provided By ICD.Codes **
Source: http://icd.codes/icd10cm/I201