S05.01XA (Injury of conjunctiva and corneal abrasion without foreign body, right eye, initial encounter) compared with S05.01XS (Injury of conjunctiva and corneal abrasion without foreign body, right eye, sequela), from the official CMS tabular data. S05.01XA and S05.01XS 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. S05.01XA and S05.01XS 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.
| S05.01XAInjury of conjunctiva and corneal abrasion without foreign body, right eye, initial encounter | S05.01XSInjury of conjunctiva and corneal abrasion without foreign body, right eye, 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 | Injury of conjunctiva and corneal abrasion without foreign body, right eye, initial encounter is a billable ICD-10-CM diagnosis code (S05.01A). | Injury of conjunctiva and corneal abrasion without foreign body, right eye, sequela is a billable ICD-10-CM diagnosis code (S05.01S). |
| 7th character | The appropriate 7th character is to be added to each code from category S05 | The appropriate 7th character is to be added to each code from category S05 |
| Includes | open wound of eye and orbit injuries of ear injuries of eye injuries of face [any part] | open wound of eye and orbit injuries of ear injuries of eye injuries of face [any part] |
Derived from the official CMS ICD-10-CM tabular data (FY2026). Not billing advice; verify sequencing rules for the encounter. All data sources