X37.9XXD — Unspecified cataclysmic storm, subsequent encounter
Is X37.9XXD billable?
Yes, but X37.9XXD is an unspecified code. X37.9XXD is a valid, billable ICD-10-CM code for encounters from October 1, 2026 through September 30, 2027. However, X37.9XXD 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 X37.9XXD — the more specific alternatives are listed below.
More specific alternatives
X37.9XXD at a glance
| Code | X37.9XXD |
|---|---|
| Description | Unspecified cataclysmic storm, subsequent encounter |
| Billable | Yes |
| Code set | ICD-10-CM FY2027 |
| Valid for encounters | October 1, 2026 – September 30, 2027 |
| 7th character "D" | subsequent encounter |
What does the 7th character "D" mean in X37.9XXD?
In X37.9XXD, the 7th character D means subsequent encounter. The 7th character is required for X37.9XXD to be a valid, complete code.
Same condition, different episode of care — switch the 7th character:
How is X37.9XXD listed in the External Cause Index?
The External Cause of Injuries Index lists these routes under X37.9, the nearest indexed parent of X37.9XXD. This is a separate index from the Alphabetic Index and is where external cause codes are looked up.
- Forces of nature › cataclysmic storm
Excludes1 — never code together
The conditions below can never be reported together with X37.9XXD on the same claim. An Excludes1 note means the two conditions cannot occur in the same patient, so reporting both is a coding error.
- collapse of dam or man-made structure causing earth movement (X36.0)
Inclusion terms
Alternative wording in documentation that is classified to X37.9XXD.
- Storm NOS
Excludes1 — never code together — inherited from X37.9
The conditions below can never be reported together with X37.9XXD on the same claim. An Excludes1 note means the two conditions cannot occur in the same patient, so reporting both is a coding error.
- collapse of dam or man-made structure causing earth movement (X36.0)
How long has X37.9XXD existed?
X37.9XXD 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.