W16.212D Fall in (into) filled bathtub causing other injury, subsequent encounter

ICD-10-CM Code W16.212D: Fall in (into) filled bathtub causing other injury, subsequent encounter

ICD-10-CM code W16.212D is an active terminology concept representing a subsequent encounter for an injury caused by falling into a filled bathtub. It is classified under the semantic type of Injury or Poisoning and is a narrower concept of W16.212. Certain post-acute care quality measures exclude subsequent encounter codes from their numerator calculations. 1 3

Plain-language overview

ICD-10-CM code W16.212D serves as an active terminology record for a subsequent encounter involving an injury or poisoning event, specifically a fall into a filled bathtub. 1

What this code represents

The preferred name for W16.212D is fall in (into) filled bathtub causing other injury, subsequent encounter, and it holds the semantic type of Injury or Poisoning within the ICD-10-CM version 2026. 1

W16.212D is a narrower concept under the parent code W16.212, which denotes a fall in (into) filled bathtub causing other injury, and it has an abbreviation for other injury and subsequent encounter. 1

Coding details

The official terminology record for W16.212D lists the concept status as active and includes published abbreviations for the terms other injury and subsequent encounter in its official display. 1

Documentation considerations

For skilled nursing facility falls with major injury quality measurement, external cause of injury codes with a subsequent encounter suffix are excluded from the numerator calculation, meaning only initial encounters are included. 3

Coverage and utilization context

A skilled nursing facility stay is included in a falls with major injury numerator calculation when an emergency department claim indicates a fall via an external cause of injury code and a major injury via a diagnosis code. 3

The home health falls with major injury measure is a hybrid calculation that incorporates claims, encounter data, and assessment data to identify falls that result in major injury during an episode of care. 2

What the sources add

The terminology source defines W16.212D as an active injury concept, while the skilled nursing facility measure specifies that diagnosis codes with a subsequent encounter suffix are excluded from its falls with major injury numerator. 1 3

Comparing the post-acute care specifications, the home health measure uses assessment and claims data to identify falls, whereas the skilled nursing facility measure identifies events through emergency department, hospital, or observation stay claims. 2 3

Sources

1. ICD-10-CM W16.212D terminology record — National Cancer Institute Enterprise Vocabulary Services; accessed 2026-07-27.
2. Home Health - Falls with Major Injury Respecification — cms.gov; accessed 2026-07-27.
3. Skilled Nursing Facility—Falls with Major Injury ... — cms.gov; accessed 2026-07-27.