X58.XXXA — Exposure to other specified factors, initial encounter
Is X58.XXXA billable?
Yes, but X58.XXXA is an unspecified code. X58.XXXA is a valid, billable ICD-10-CM code for encounters from October 1, 2026 through September 30, 2027. However, X58.XXXA is an unspecified or catch-all code. Payers apply additional scrutiny to unspecified codes and many deny them when the medical record supports a more specific option, so check the documentation before selecting X58.XXXA — the more specific alternatives are listed below.
X58.XXXA at a glance
| Code | X58.XXXA |
|---|---|
| Description | Exposure to other specified factors, initial encounter |
| Billable | Yes |
| Code set | ICD-10-CM FY2027 |
| Valid for encounters | October 1, 2026 – September 30, 2027 |
How is X58.XXXA listed in the External Cause Index?
The External Cause of Injuries Index lists these routes under X58, the nearest indexed parent of X58.XXXA. This is a separate index from the Alphabetic Index and is where external cause codes are looked up.
- AbandonmentNEC (causing exposure to weather conditions) (with intent to injure or kill)
- Abuse (adult) (child) (mental) (physical) (sexual)
- Accident (to)
- Arachnidism, arachnoidism
- Battered (baby) (child) (person) (syndrome)
- Blow
- CasualtyNEC (not due to war)
- Cruelty (mental) (physical) (sexual)
Inclusion terms
Alternative wording in documentation that is classified to X58.XXXA.
- Accident NOS
- Exposure NOS
How long has X58.XXXA existed?
X58.XXXA has been in ICD-10-CM since at least FY2016, the earliest fiscal year on record here.
Derived from the official order files for FY2016–FY2026. FY2017 and FY2020 publish no order file, so those years are not covered.