S23 vs S29.01
S23 (Dislocation and sprain of joints and ligaments of thorax) compared with S29.01 (Strain of muscle and tendon of thorax), from the official CMS tabular data. Both may be reported when both conditions are documented (Excludes2).
Can these codes be reported together?
Yes, when both are documented. S23 carries an Excludes2 note covering S29.01: “strain of muscle or tendon of thorax (S29.01-)”
Excludes2 marks distinct conditions — both may be reported when both are documented.
Side by side
| S23Dislocation and sprain of joints and ligaments of thorax | S29.01Strain of muscle and tendon of thorax | |
|---|---|---|
| Billing status | Non-billable header Report instead: S23.0XXA, S23.0XXD, S23.0XXS, S23.100A, S23.100D | Non-billable header Report instead: S29.011A, S29.011D, S29.011S, S29.012A, S29.012D |
| 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 | Dislocation and sprain of joints and ligaments of thorax is a non-billable ICD-10-CM category code (S23). | Strain of muscle and tendon of thorax is a non-billable ICD-10-CM category code (S29.01). |
| 7th character | The appropriate 7th character is to be added to each code from category S23 | The appropriate 7th character is to be added to each code from category S29 |
| Includes | avulsion of joint or ligament of thorax laceration of cartilage, joint or ligament of thorax sprain of cartilage, joint or ligament of thorax traumatic hemarthrosis of joint or ligament of thorax | injuries of breast injuries of chest (wall) injuries of interscapular area |
Derived from the official CMS ICD-10-CM tabular data (FY2026). Not billing advice; verify sequencing rules for the encounter. All data sources