W10.9XXA — Fall (on) (from) unspecified stairs and steps, initial encounter

W10.9XXA

What this code means

An external-cause code recording a fall on or from stairs or steps (not further specified); first encounter.

Also called: fall down stairs, fall on steps.

When this code is used

Used as an additional code for a fall (on) (from) unspecified stairs and steps, initial encounter.

Where it sits in ICD-10-CM

Code W10.9XXA belongs to Chapter 20: External causes of morbidity, which covers codes V00–Y99 in the FY2027 ICD-10-CM tabular list. The official description above is copied verbatim from the CDC/NCHS FY2027 code file.

Frequently asked questions

This guide explains ICD-10-CM codes in plain language for patients, students and other readers. It is educational information only — not coding, billing or medical advice. The code recorded for any real encounter is assigned from the full clinical documentation by the treating team and qualified coders, and only they can decide which code fits a specific case.

More codes in Chapter 20

V89.2XXA — Person injured in unspecified motor-vehicle accident, traffic, initial encounterW01.0XXA — Fall on same level from slipping, tripping and stumbling without subsequent striking against object, initial encounterW19.XXXA — Unspecified fall, initial encounterW54.0XXA — Bitten by dog, initial encounterW55.01XA — Bitten by cat, initial encounterW57.XXXA — Bitten or stung by nonvenomous insect and other nonvenomous arthropods, initial encounter

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