Fall from, out of or through building or structure (W13) ICD-10-CM
The W13 code range covers fall from, out of or through building or structure with 29 ICD-10-CM diagnosis codes. 21 of them are billable and valid for claim submission in fiscal year 2026, and the category headers group them but cannot themselves be billed.
7th Character Note
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.
- The appropriate 7th character is to be added to each code from category W13
7th Character
Indicates that a seventh character is to be assigned to codes in a subcategory.
- A - initial encounter
- D - subsequent encounter
- S - sequela
Codes in the W13 Range 29 codes · 21 billable
- W13 Fall from, out of or through building or structureNon-billable
- W13.0 Fall from, out of or through balconyNon-billable
- W13.0XXA Fall from, out of or through balcony, initial encounter
- W13.0XXD Fall from, out of or through balcony, subsequent encounter
- W13.0XXS Fall from, out of or through balcony, sequela
- W13.1 Fall from, out of or through bridgeNon-billable
- W13.1XXA Fall from, out of or through bridge, initial encounter
- W13.1XXD Fall from, out of or through bridge, subsequent encounter
- W13.1XXS Fall from, out of or through bridge, sequela
- W13.2 Fall from, out of or through roofNon-billable
- W13.2XXA Fall from, out of or through roof, initial encounter
- W13.2XXD Fall from, out of or through roof, subsequent encounter
- W13.2XXS Fall from, out of or through roof, sequela
- W13.3 Fall through floorNon-billable
- W13.3XXA Fall through floor, initial encounter
- W13.3XXD Fall through floor, subsequent encounter
- W13.3XXS Fall through floor, sequela
- W13.4 Fall from, out of or through windowNon-billable
- W13.4XXA Fall from, out of or through window, initial encounter
- W13.4XXD Fall from, out of or through window, subsequent encounter
- W13.4XXS Fall from, out of or through window, sequela
- W13.8 Fall from, out of or through other building or structureNon-billable
- W13.8XXA Fall from, out of or through other building or structure, initial encounter
- W13.8XXD Fall from, out of or through other building or structure, subsequent encounter
- W13.8XXS Fall from, out of or through other building or structure, sequela
- W13.9 Fall from, out of or through building, not otherwise specifiedNon-billable
- W13.9XXA Fall from, out of or through building, not otherwise specified, initial encounter
- W13.9XXD Fall from, out of or through building, not otherwise specified, subsequent encounter
- W13.9XXS Fall from, out of or through building, not otherwise specified, sequela
About the W13 Code Range
The ICD-10 code W13 and its extensions classify falls from, out of, or through various types of buildings or structures, such as balconies, bridges, roofs, floors, windows, and other architectural elements. These codes are used to document and specify the exact type of fall-related injury source for accurate medical coding.
The ICD-10 code for fall from balcony (W13.0XX) covers incidents commonly referred to as "fall from building" or "fall from balcony." Similarly, W13.1XX codes apply to falls from bridges, including injuries described as falls from a high man-made structure. Falls through roofs are coded under W13.2XX, also linked with terms like "fall through roof." Injuries from falls through floors, windows (W13.3XX and W13.4XX, respectively) specify the location of the fall more precisely. The category W13.8XX incorporates falls from other structures such as flagpoles, towers, or chimneys, while W13.9XX captures falls from buildings that are not otherwise specified. Each subcategory includes initial, subsequent, and sequela encounters to track the course of treatment following the incident. These codes help medical coders accurately capture the external cause of injury related to falls from specific parts of a building or structure.
Questions About This Page
How many billable codes are in the W13 range?
Of the 29 codes in this range, 21 are billable and valid for claim submission from October 1, 2025 through September 30, 2026. Category header codes group them but cannot be reported on claims.
What does the W13 range classify?
The range classifies fall from, out of or through building or structure. Each code links to its own reference page with billing status, MS-DRG grouping, coding notes, and clinical information.
Related References
Source: CMS FY 2026 ICD-10-CM Tabular List and order file, effective October 1, 2025 through September 30, 2026.
