S31.813A (Puncture wound without foreign body of right buttock, initial encounter) compared with S31.823A (Puncture wound without foreign body of left buttock, initial encounter), from the official CMS tabular data. S31.813A and S31.823A 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. S31.813A and S31.823A 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.
| S31.813APuncture wound without foreign body of right buttock, initial encounter | S31.823APuncture wound without foreign body of left buttock, initial encounter | |
|---|---|---|
| Billing status | Billable | Billable |
| Classification | S00-T88 — Injury, Poisoning and Certain Other Consequences of External Causes (S00-T88) | S00-T88 — Injury, Poisoning and Certain Other Consequences of External Causes (S00-T88) |
| Definition | Puncture wound without foreign body of right buttock, initial encounter is a billable ICD-10-CM diagnosis code (S31.813A). | Puncture wound without foreign body of left buttock, initial encounter is a billable ICD-10-CM diagnosis code (S31.823A). |
| 7th character | The appropriate 7th character is to be added to each code from category S31 | The appropriate 7th character is to be added to each code from category S31 |
| Includes | injuries to the abdominal wall injuries to the anus injuries to the buttock injuries to the external genitalia | injuries to the abdominal wall injuries to the anus injuries to the buttock injuries to the external genitalia |
Derived from the official CMS ICD-10-CM tabular data (FY2026). Not billing advice; verify sequencing rules for the encounter. All data sources