S22.31XB (Fracture of one rib, right side, initial encounter for open fracture) compared with S22.39XB (Fracture of one rib, unspecified side, initial encounter for open fracture), from the official CMS tabular data. S22.31XB and S22.39XB 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. S22.31XB and S22.39XB 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.
| S22.31XBFracture of one rib, right side, initial encounter for open fracture | S22.39XBFracture of one rib, unspecified side, initial encounter for open fracture | |
|---|---|---|
| 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 | Fracture of one rib, right side, initial encounter for open fracture is a billable ICD-10-CM diagnosis code (S22.31B). | Fracture of one rib, unspecified side, initial encounter for open fracture is a billable ICD-10-CM diagnosis code (S22.39B). |
| 7th character | The appropriate 7th character is to be added to each code from category S22 | The appropriate 7th character is to be added to each code from category S22 |
| Includes | fracture of thoracic neural arch fracture of thoracic spinous process fracture of thoracic transverse process fracture of thoracic vertebra | fracture of thoracic neural arch fracture of thoracic spinous process fracture of thoracic transverse process fracture of thoracic vertebra |
| Code first | , if applicable, spinal cord injury (S24.0-, S24.1-) | , if applicable, spinal cord injury (S24.0-, S24.1-) |
Derived from the official CMS ICD-10-CM tabular data (FY2026). Not billing advice; verify sequencing rules for the encounter. All data sources