I20.8
Non-billableOther forms of angina pectoris
Other forms of angina pectoris
This is a header/category code. For billing purposes, use a more specific child code from the list below.
Coding Notes
Excludes 1
Codes that cannot be used together with this code (mutual exclusion)
Excludes 2
Conditions not included here, but the patient may have both
- certain conditions originating in the perinatal period (P04-P96)
- certain infectious and parasitic diseases (A00-B99)
- complications of pregnancy, childbirth and the puerperium (O00-O9A)
- congenital malformations, deformations, and chromosomal abnormalities (Q00-Q99)
- endocrine, nutritional and metabolic diseases (E00-E88)
- injury, poisoning and certain other consequences of external causes (S00-T88)
- neoplasms (C00-D49)
- symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R94)
- systemic connective tissue disorders (M30-M36)
- transient cerebral ischemic attacks and related syndromes (G45.-)
Use Additional Code
Additional codes that should follow this code
Code Also
A second code may be required; sequencing depends on circumstances
- the presence of hypertension (I10-I1A)
Child Codes (2)
Also Known As / Clinical Terms
Frequently Asked Questions
What is ICD-10 code I20.8?
ICD-10-CM code I20.8 represents "Other forms of angina pectoris". It is a non-billable header code — use a more specific child code for billing purposes.
Is I20.8 a billable code?
No, I20.8 is a non-billable header code. You need to use one of its more specific child codes for billing. There are 2 child codes under I20.8.
What chapter is I20.8 in?
I20.8 is in Chapter 9: Diseases of the Circulatory System (codes I00-I99).
What codes cannot be used with I20.8?
I20.8 has Excludes1 notes indicating codes that cannot be used together with it, including: 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).
What are the subcategories under I20.8?
I20.8 has 2 child codes, including: I20.81 (Angina pectoris with coronary microvascular dysfunction), I20.89 (Other forms of angina pectoris).
Are additional codes required with I20.8?
Yes, when using I20.8 you should also code: 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); code(s) for symptoms associated with angina equivalent.
What are the UMLS CUIs for I20.8?
I20.8 is linked to 1 UMLS Concept Unique Identifier: C0348588. The UMLS (Unified Medical Language System) integrates multiple biomedical vocabularies maintained by the U.S. National Library of Medicine.
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Includes SNOMED Clinical Terms® (SNOMED CT®) used by permission of SNOMED International. Includes content from the UMLS Metathesaurus, courtesy of the U.S. National Library of Medicine.