S25.321A vs S25.321S
S25.321A (Major laceration of right innominate or subclavian vein, initial encounter) compared with S25.321S (Major laceration of right innominate or subclavian vein, sequela), from the official CMS tabular data. S25.321A and S25.321S code the same injury at a different phase of treatment.
Can these codes be reported together?
Same injury, other encounter phase. S25.321A and S25.321S code the same injury at a different phase of treatment, set by the 7th character.
The 7th character records the type of care given at the encounter being coded (ICD-10-CM Official Guidelines, Section I.C.19.a), so one encounter takes one of these, not both.
Side by side
| S25.321AMajor laceration of right innominate or subclavian vein, initial encounter | S25.321SMajor laceration of right innominate or subclavian vein, sequela | |
|---|---|---|
| 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 | Major laceration of right innominate or subclavian vein, initial encounter is a billable ICD-10-CM diagnosis code (S25.321A). | Major laceration of right innominate or subclavian vein, sequela is a billable ICD-10-CM diagnosis code (S25.321S). |
| 7th character | The appropriate 7th character is to be added to each code from category S25 | The appropriate 7th character is to be added to each code from category S25 |
| Includes | injuries of breast injuries of chest (wall) injuries of interscapular area | 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