ICD-10 Code for Atheroma
The default ICD-10-CM 2027 code for atheroma, atheromatous is I70.90 – Unspecified atherosclerosis. More specific codes depend on the details documented, as listed in the official index (8 codes, 8 billable).
- Main code
I70.90– Unspecified atherosclerosis- Billable
- Yes
- See also
- Arteriosclerosis
Index entries for Atheroma
- aorta, aortic –
I70.0- valve –
I35.8– see also Endocarditis, aortic
- valve –
- aorto-iliac –
I70.0 - artery – see Arteriosclerosis
- basilar (artery) –
I67.2 - carotid (artery) (common) (internal) –
I67.2 - cerebral (arteries) –
I67.2 - coronary (artery) –
I25.10- with angina pectoris – see Arteriosclerosis, coronary (artery),
- degeneration – see Arteriosclerosis
- heart, cardiac – see Disease, heart, ischemic, atherosclerotic
- mitral (valve) –
I34.89 - myocardium, myocardial – see Disease, heart, ischemic, atherosclerotic
- pulmonary valve (heart) –
I37.8– see also Endocarditis, pulmonary - tricuspid (heart) (valve) –
I36.8 - valve, valvular – see Endocarditis
- vertebral (artery) –
I67.2
How to choose the right code
Start with the main term, then pick the indented subterm that matches the documentation (type, cause, site, laterality, episode of care). Always confirm the code in the tabular list: follow its Excludes1/Excludes2, “code first” and “use additional code” notes, and add a 7th character where required.
Source: CDC/NCHS ICD-10-CM FY2027 alphabetic index.