S92.331A (Displaced fracture of third metatarsal bone, right foot, initial encounter for closed fracture) compared with S92.331S (Displaced fracture of third metatarsal bone, right foot, sequela), from the official CMS tabular data. S92.331A and S92.331S code the same injury at a different phase of treatment.
Same underlying diagnosis, different encounter phase.
The 7th character records the phase of care for the encounter being coded, so a single encounter takes one of these characters, not several. Review whether both phases belong on the same episode of care.
Source: ICD-10-CM Official Guidelines, Section I.C.19.a
Same injury, other encounter phase. S92.331A and S92.331S 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.
| S92.331ADisplaced fracture of third metatarsal bone, right foot, initial encounter for closed fracture | S92.331SDisplaced fracture of third metatarsal bone, right foot, 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 | Displaced fracture of third metatarsal bone, right foot, initial encounter for closed fracture is a billable ICD-10-CM diagnosis code (S92.331A). | Displaced fracture of third metatarsal bone, right foot, sequela is a billable ICD-10-CM diagnosis code (S92.331S). |
| 7th character | The appropriate 7th character is to be added to each code from category S92 | The appropriate 7th character is to be added to each code from category S92 |
Derived from the official CMS ICD-10-CM tabular data (FY2026). Not billing advice; verify sequencing rules for the encounter. All data sources