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ICD-10-CM Code for Unstable angina I20.0

ICD-10 code I20.0 for Unstable angina is a medical classification as listed by WHO under the range - Diseases of the circulatory system .

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Official Long Descriptor

Unstable angina
Accelerated angina
Crescendo angina
De novo effort angina
Intermediate coronary syndrome
Preinfarction syndrome
Worsening effort angina

I20

Excludes1: angina pectoris with atherosclerotic heart disease of native coronary arteries (I25.1-)
atherosclerosis of coronary artery bypass graft(s) and coronary artery of transplanted heart with angina pectoris (I25.7-)
postinfarction angina (I23.7)

Use additional code to identify:
exposure to environmental tobacco smoke (Z77.22)
history of tobacco dependence (Z87.891)
occupational exposure to environmental tobacco smoke (Z57.31)
tobacco dependence (F17.-)
tobacco use (Z72.0)

Additional/Related Information

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Get crucial instructions for accurate ICD-10-CM I20.0 coding with all applicable Excludes 1 and Excludes 2 notes from the section level conveniently shown with each code.
This section shows you chapter-specific coding guidelines to increase your understanding and correct usage of the target ICD-10-CM Volume 1 code.

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Have a question about ICD-10-CM Code I20.0 ? Start a discussion here
Cad with angina
Good morning - you would code the combination code only I25.11x (with the appropriate 6th character based on the type of angina). If they say angina pectoris with no further details like unstable, exe... [ Read More ]
Cad with angina
Good morning. I have a question to understand combo coding. If a patient has cad with angina, would you use code i25.110 to capture both? The doctor specifically mentions this patient has angina pect... [ Read More ]
Mycardio Infarction Coding
[URL='https://www.aapc.com/discuss/threads/nstemi-myocardial-infarction-old-vs-history-of-when-coding-cad.142750/']From our Wiki post here:[/URL] [B]Code:[/B] I25.2 [B]Code Name:[/B] ICD-10 Code fo... [ Read More ]
Angina pectoris (use additional code to identify: Z77.22...)
I have a curious question: I have noticed under I20 angina pectoris there is this note that says: Use additional code to identify: exposure to environmental tobacco smoke Z77.22 history ... [ Read More ]
I20.9?
can this code be used in a office setting Thank you... [ Read More ]
Class 3 angina
[QUOTE="sccclarkesr, post: 437156, member: 297690"]is class 3 angina considered unstable? and what would the code be?[/QUOTE] As I understand it, the class is a measure of the severity, not of whethe... [ Read More ]
Atherosclerosis and Angina
I70.90 and I20.9 Atherosclerosis was not specific enough so you have to assign I70.90. You can't use any combination code since the type of atherosclerosis was not specific enough, so you have to c... [ Read More ]
Intermediate Coronary Syndrome ... ?
ICD-10 code I20.0 (unstable angina) includes intermediate coronary syndrome however what if the patient has coronary artery disease as well; does the intermediate coronary syndrome included in the uns... [ Read More ]
May Mania Question 2
Question 2: > > Please provide the ICD-10 codes: > > A patient presents for a recheck after suffering an acute myocardial infarction of the left anterior descending artery 2 weeks prior and has post... [ Read More ]
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