S06.A0XA (Traumatic brain compression without herniation, initial encounter) compared with S06.A0XS (Traumatic brain compression without herniation, sequela), from the official CMS tabular data. S06.A0XA and S06.A0XS code the same injury at a different phase of treatment. MedCoder-derived
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. S06.A0XA and S06.A0XS 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.
| S06.A0XATraumatic brain compression without herniation, initial encounter | S06.A0XSTraumatic brain compression without herniation, sequela | |
|---|---|---|
| Billing status | Billable | Billable |
| Classification | S00-T88 — Injury, poisoning and certain other consequences of external causes | S00-T88 — Injury, poisoning and certain other consequences of external causes |
| Definition | Traumatic brain compression without herniation, initial encounter is a billable ICD-10-CM diagnosis code (S06.A0A). | Traumatic brain compression without herniation, sequela is a billable ICD-10-CM diagnosis code (S06.A0S). |
| 7th character | The appropriate 7th character is to be added to each code from category S06, except as noted below | The appropriate 7th character is to be added to each code from category S06, except as noted below |
| Includes | traumatic brain injury injuries of ear injuries of eye injuries of face [any part] | traumatic brain injury injuries of ear injuries of eye injuries of face [any part] |
| Use additional code | code, if applicable, to identify mild neurocognitive disorders due to known physiological condition (F06.7-) | code, if applicable, to identify mild neurocognitive disorders due to known physiological condition (F06.7-) |
| Code first | the underlying traumatic brain injury, such as: diffuse traumatic brain injury (S06.2-) | the underlying traumatic brain injury, such as: diffuse traumatic brain injury (S06.2-) |
Derived from the official CMS ICD-10-CM tabular data (FY2026). Not billing advice; verify sequencing rules for the encounter. All data sources