2026 ICD-10-CM Diagnosis Code Y31Falling, lying or running before or into moving object, undetermined intent
Y31 is a non-billable ICD-10-CM category code for falling, lying or running before or into moving object, undetermined intent, so it cannot be submitted on claims. Use a more specific code from this category instead, such as Y31.XXXA, Y31.XXXD, and Y31.XXXS.
Code Identity
Code Classification
Tabular List NotesGuidance
Coding notes and annotation back-references applicable to this code.
7th Character Note
- The appropriate 7th character is to be added to code Y31
7th Character
- A - initial encounter
- D - subsequent encounter
- S - sequela
Certain ICD-10-CM categories have applicable 7th characters. The applicable 7th character is required for all codes within the category, or as the notes in the Tabular List instruct. The 7th character must always be the 7th character in the data field. If a code that requires a 7th character is not 6 characters, a placeholder X must be used to fill in the empty characters.
Indicates that a seventh character is to be assigned to codes in a subcategory.
Patient EducationClinical
Falls
Falls can be dangerous at any age. Babies and young children can get hurt falling off furniture or down the stairs. Older children may fall off playground equipment. For older adults, falls can be especially serious. They are at higher risk of falling.
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Code HistoryHistory
Questions About Y31Overview
Is Y31 a billable code?
No. This is a category header that groups the codes for falling, lying or running before or into moving object, undetermined intent, and headers cannot be submitted on claims. Claims for falling, lying or running before or into moving object, undetermined intent need a more specific code from this category, such as Y31.XXXA, Y31.XXXD, and Y31.XXXS.
