Skip to main content

I70.433 vs I70.443

I70.433 (Atherosclerosis of autologous vein bypass graft(s) of the right leg with ulceration of ankle) compared with I70.443 (Atherosclerosis of autologous vein bypass graft(s) of the left leg with ulceration of ankle), from the official CMS tabular data. I70.433 and I70.443 code the same condition on opposite sides.

Relationship

Review

Laterality relationship

I70.433
Right
Atherosclerosis of autologous vein bypass graft(s) of the right leg with ulceration of ankle
↔
I70.443
Left
Atherosclerosis of autologous vein bypass graft(s) of the left leg with ulceration of ankle

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)

Can these codes be reported together?

Same condition, opposite side. I70.433 and I70.443 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.

Side by side

I70.433Atherosclerosis of autologous vein bypass graft(s) of the right leg with ulceration of ankleI70.443Atherosclerosis of autologous vein bypass graft(s) of the left leg with ulceration of ankle
Billing statusBillableBillable
ClassificationI00-I99 — Diseases of the Circulatory System (I00-I99)I00-I99 — Diseases of the Circulatory System (I00-I99)
DefinitionAtherosclerosis of autologous vein bypass graft(s) of the right leg with ulceration of ankle is a billable ICD-10-CM diagnosis code (I70.433).Atherosclerosis of autologous vein bypass graft(s) of the left leg with ulceration of ankle is a billable ICD-10-CM diagnosis code (I70.443).
Includes
any condition classifiable to I70.411 and I70.421
chronic limb-threatening ischemia of autologous vein bypass graft(s) of the right leg with ulceration
critical limb ischemia of autologous vein bypass graft(s) of the right leg with ulceration
arteriolosclerosis
any condition classifiable to I70.412 and I70.422
chronic limb-threatening ischemia of autologous vein bypass graft(s) of the left leg with ulceration
critical limb ischemia of autologous vein 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:
Edit this comparisonCheck a whole claim

Derived from the official CMS ICD-10-CM tabular data (FY2026). Not billing advice; verify sequencing rules for the encounter. All data sources