ICD-10 code for artery obstruction

The ICD-10-CM code for artery obstruction is I70.9 (Other and unspecified atherosclerosis). The official index lists 1 more specific code, so check the documentation for details such as type, cause, site or severity before settling on I70.9.

Within I70, choose I70.9 (Other and unspecified atherosclerosis) only when documentation doesn't support a more specific option: of aorta (I70.0), of renal artery (I70.1), of native arteries of the extremities (I70.2), of unspecified type of bypass graft(s) of the extremities (I70.3), of autologous vein bypass graft(s) of the extremities (I70.4), of nonautologous biological bypass graft(s) of the extremities (I70.5), of nonbiological bypass graft(s) of the extremities (I70.6), of other type of bypass graft(s) of the extremities (I70.7) and 1 more.

To report this condition, pick the subcode that matches the documentation: I70.90 (atherosclerosis), I70.91 (atherosclerosis) and I70.92 (extremities).

The conditions in its Excludes2 note aren't part of I70.9, but may be coded alongside it if the patient has both: disorders of pyrophosphate metabolism (E83.82-).