I70.632 (Atherosclerosis of nonbiological bypass graft(s) of the right leg with ulceration of calf) compared with I70.642 (Atherosclerosis of nonbiological bypass graft(s) of the left leg with ulceration of calf), from the official CMS tabular data. I70.632 and I70.642 code the same condition on opposite sides. MedCoder-derived
Same condition; these differ only in which side is documented.
These codes share a category and title and differ only in the side affected. The documentation decides which applies, and a bilateral code is reported only where the code set provides one.
Source: ICD-10-CM tabular list (laterality variant derived from the code title)
Same condition, opposite side. I70.632 and I70.642 name the same condition on opposite sides of the body.
Same category and title, differing only in which side is affected — the documentation decides which one applies, and a bilateral code is reported only where the code set provides one.
| I70.632Atherosclerosis of nonbiological bypass graft(s) of the right leg with ulceration of calf | I70.642Atherosclerosis of nonbiological bypass graft(s) of the left leg with ulceration of calf | |
|---|---|---|
| Billing status | Billable | Billable |
| Classification | I00-I99 — Diseases of the Circulatory System (I00-I99) | I00-I99 — Diseases of the Circulatory System (I00-I99) |
| Definition | Atherosclerosis of nonbiological bypass graft(s) of the right leg with ulceration of calf is a billable ICD-10-CM diagnosis code (I70.632). | Atherosclerosis of nonbiological bypass graft(s) of the left leg with ulceration of calf is a billable ICD-10-CM diagnosis code (I70.642). |
| Includes | any condition classifiable to I70.611 and I70.621 chronic limb-threatening ischemia of nonbiological bypass graft(s) of the right leg with ulceration critical limb ischemia of nonbiological bypass graft(s) of the right leg with ulceration arteriolosclerosis | any condition classifiable to I70.612 and I70.622 chronic limb-threatening ischemia of nonbiological bypass graft(s) of the left leg with ulceration critical limb ischemia of nonbiological bypass graft(s) of the left leg with ulceration arteriolosclerosis |
| Use additional code | code to identify severity of ulcer (L97.-) code, if applicable, to identify chronic total occlusion of artery of extremity (I70.92) code to identify: | code to identify severity of ulcer (L97.-) code, if applicable, to identify chronic total occlusion of artery of extremity (I70.92) code to identify: |
Derived from the official CMS ICD-10-CM tabular data (FY2026). Not billing advice; verify sequencing rules for the encounter. All data sources