S54.8X9A vs S64
S54.8X9A (Injury of other nerves at forearm level, unspecified arm, initial encounter) compared with S64 (Injury of nerves at wrist and hand level), 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. S54.8X9A carries an Excludes2 note covering S64: “injury of nerves at wrist and hand level (S64.-)”
Excludes2 marks distinct conditions — both may be reported when both are documented.
Side by side
| S54.8X9AInjury of other nerves at forearm level, unspecified arm, initial encounter | S64Injury of nerves at wrist and hand level | |
|---|---|---|
| Billing status | Billable | Non-billable header Report instead: S64.00XA, S64.00XD, S64.00XS, S64.01XA, S64.01XD |
| 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 other nerves at forearm level, unspecified arm, initial encounter is a billable ICD-10-CM diagnosis code (S54.8X9A). | Injury of nerves at wrist and hand level is a non-billable ICD-10-CM category code (S64). |
| 7th character | The appropriate 7th character is to be added to each code from category S54 | The appropriate 7th character is to be added to each code from category S64 |
Derived from the official CMS ICD-10-CM tabular data (FY2026). Not billing advice; verify sequencing rules for the encounter. All data sources