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Arterial Stenosis
Date: May 26, 2021
Question:
For ICD-9, arterial stenosis was coded 447.1, which crosswalks to I77.1 for ICD-10. In the ICD-10 index, "Stenosis, artery NEC" indicates "see also Arteriosclerosis I77.1", which seems misleading since the Arteriosclerosis section appears to only have I70.XXX codes included. Is this a typo in the index? To confirm, extremity artery stenosis is coded as I70.XXX (as the index routes you to Arteriosclerosis, extremities when looking up Stenosis, artery, extremities)? If yes, what diagnosis term/condition is represented by I77.1?
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