I87.311 (Chronic venous hypertension (idiopathic) with ulcer of right lower extremity) compared with I87.313 (Chronic venous hypertension (idiopathic) with ulcer of bilateral lower extremity), from the official CMS tabular data. I87.311 and I87.313 code the same condition on opposite sides.
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. I87.311 and I87.313 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.
| I87.311Chronic venous hypertension (idiopathic) with ulcer of right lower extremity | I87.313Chronic venous hypertension (idiopathic) with ulcer of bilateral lower extremity | |
|---|---|---|
| Billing status | Billable | Billable |
| Classification | I00-I99 — Diseases of the Circulatory System (I00-I99) | I00-I99 — Diseases of the Circulatory System (I00-I99) |
| Definition | Chronic venous hypertension (idiopathic) with ulcer of right lower extremity is a billable ICD-10-CM diagnosis code (I87.311). | Chronic venous hypertension (idiopathic) with ulcer of bilateral lower extremity is a billable ICD-10-CM diagnosis code (I87.313). |
| Use additional code | code to specify site and severity of ulcer (L97.-) | code to specify site and severity of ulcer (L97.-) |
Derived from the official CMS ICD-10-CM tabular data (FY2026). Not billing advice; verify sequencing rules for the encounter. All data sources