Y31: Falling, lying or running before or into moving object, undetermined intent
Codes under Y31 (Falling, lying or running before or into moving object, undetermined intent). A ✓ marks a billable (fully specified) code; category codes without a ✓ are not billable on their own.
| Code | Description | Billable |
|---|---|---|
| Y31.XXXA | Falling, lying or running before or into moving object, undetermined intent, initial encounter | ✓ |
| Y31.XXXA | Falling, lying or running before or into moving object, undetermined intent, initial encounter | ✓ |
| Y31.XXXD | Falling, lying or running before or into moving object, undetermined intent, subsequent encounter | ✓ |
| Y31.XXXD | Falling, lying or running before or into moving object, undetermined intent, subsequent encounter | ✓ |
| Y31.XXXS | Falling, lying or running before or into moving object, undetermined intent, sequela | ✓ |
| Y31.XXXS | Falling, lying or running before or into moving object, undetermined intent, sequela | ✓ |
Frequently asked questions
What is ICD-10-CM code Y31?
Y31 is an ICD-10-CM category covering Falling, lying or running before or into moving object, undetermined intent. It contains 6 more specific diagnosis codes, 6 of which are billable.
Is Y31 a billable code?
No — Y31 is a category header and isn't billable on its own. Code to the highest level of specificity using one of its subcodes (for example Y31.XXXA — Falling, lying or running before or into moving object, undetermined intent, initial encounter). 6 of the 6 codes under Y31 are billable.
What codes fall under Y31?
Y31 includes Y31.XXXA, Y31.XXXA, Y31.XXXD, Y31.XXXD, Y31.XXXS, plus 1 more. See the full list with descriptions and billable status above.
More free billing tools: all ICD-10 categories · ICD-10 search · denial codes · Medicare fees
Informational only, not coding or medical advice. Verify against the official ICD-10-CM (FY2026) and your payer's guidelines.
Code the diagnosis right
Join providers across the country delivering modern virtual care with CareNiva. Free to start, ready in minutes.
100% Satisfaction Guaranteed — try it risk-free