W16.91XA ICD-10-CM Code: Jumping or diving into unspecified water causing drowning and submersion, initial encounter
Billing Status: YES. This is a valid, specific, and billable ICD-10-CM reference.
Official Registry Overview & Definition
Official Tabular Instructional Notes
Sequencing, inclusion, and exclusion notes published for W16.91XA in the official ICD-10-CM tabular list.
Excludes1 — Not Coded Here
Conditions generally not reported together with this code (Excludes1) -- an error unless the two conditions are documented as unrelated to each other (ICD-10-CM Official Guidelines, Section I.A.12.a).
- accidental non-watercraft drowning and submersion not involving fall (W65-W74) Compare W16.91XA vs W65 →
- effects of air pressure from diving (W94.-) Compare W16.91XA vs W94 →
- fall into water from watercraft (V90-V94) Compare W16.91XA vs V90 →
- hitting an object or against bottom when falling from watercraft (V94.0) Compare W16.91XA vs V94.0 →
- assault involving a fall (Y01-Y02) Compare W16.91XA vs Y01 →
- fall from animal (V80.-) Compare W16.91XA vs V80 →
- fall (in) (from) machinery (in operation) (W28-W31) Compare W16.91XA vs W28 →
- fall (in) (from) transport vehicle (V01-V99) Compare W16.91XA vs V01 →
- intentional self-harm involving a fall (X80-X81) Compare W16.91XA vs X80 →
Excludes2 — Not Included Here
Conditions not covered by this code, but which may be reported alongside it when both are present.
- striking or hitting diving board (W21.4) Compare W16.91XA vs W21.4 →
- at risk for fall (history of fall) Z91.81
- fall (in) (from) burning building (X00.-) Compare W16.91XA vs X00 →
- fall into fire (X00-X04, X08) Compare W16.91XA vs X00 →
Frequently Compared Codes
The official Excludes notes on W16.91XA name these codes. Each comparison page covers when the two can — or must not — be reported together.
Change history
No changes recorded for this code — unchanged since the FY2016 baseline of the change ledger.
Verify Before Coding
- Principal-diagnosis restriction. External cause of morbidity codes (V, W, X and Y) describe the circumstance that caused an injury, not the condition treated. The Medicare Code Editor rejects them as a principal diagnosis; sequence the injury or condition first and report this code as secondary.
From the code registry, the Medicare Code Editor, and the MS-DRG Definitions Manual. Check it against a full claim.
Relationships & Classification
Other codes that name W16.91XA or its code family, from the CMS ICD-10-CM tabular instructional notes. Tabular-note edges are stored at the code family level that carries each note.
8 Excludes1 notes: V90 (via W16.-), V92 (via W16.-), W65 (via W16.-), W65-W74 (via W16.-), W67 (via W16.-), W69 (via W16.-), W73 (via W16.-), W74 (via W16.-).
1 Use Additional Code instructions: W21.4 (via W16.-).
Clinical classification (AHRQ CCSR):EXT002 — External cause codes: drowning/submersion; initial encounter; EXT020 — External cause codes: intent of injury, accidental/unintentional.
Clinical Classifications Software Refined (CCSR) for ICD-10-CM Diagnoses. Healthcare Cost and Utilization Project (HCUP), Agency for Healthcare Research and Quality.
Related Codes
Same clinical category (CCSR)
AHRQ's Clinical Classifications Software groups these diagnoses under the same clinical categories (External cause codes: drowning/submersion; initial encounter, External cause codes: intent of injury, accidental/unintentional).
W16.511A — Jumping or diving into swimming pool striking water surface causing drowning and submersion, initial encounter, W16.521A — Jumping or diving into swimming pool striking bottom causing drowning and submersion, initial encounter, W16.531A — Jumping or diving into swimming pool striking wall causing drowning and submersion, initial encounter, W16.611A — Jumping or diving into natural body of water striking water surface causing drowning and submersion, initial encounter, W16.621A — Jumping or diving into natural body of water striking bottom causing drowning and submersion, initial encounter, W16.711A — Jumping or diving from boat striking water surface causing drowning and submersion, initial encounter, W16.721A — Jumping or diving from boat striking bottom causing drowning and submersion, initial encounter, W16.811A — Jumping or diving into other water striking water surface causing drowning and submersion, initial encounter, W16.821A — Jumping or diving into other water striking bottom causing drowning and submersion, initial encounter, W16.831A — Jumping or diving into other water striking wall causing drowning and submersion, initial encounter, W22.041A — Striking against wall of swimming pool causing drowning and submersion, initial encounter, W65.XXXA — Accidental drowning and submersion while in bath-tub, initial encounter, W67.XXXA — Accidental drowning and submersion while in swimming-pool, initial encounter, W69.XXXA — Accidental drowning and submersion while in natural water, initial encounter, W73.XXXA — Other specified cause of accidental non-transport drowning and submersion, initial encounter, W74.XXXA — Unspecified cause of accidental drowning and submersion, initial encounter, X71.0XXA — Intentional self-harm by drowning and submersion while in bathtub, initial encounter, X71.1XXA — Intentional self-harm by drowning and submersion while in swimming pool, initial encounter, X71.2XXA — Intentional self-harm by drowning and submersion after jump into swimming pool, initial encounter, X71.3XXA — Intentional self-harm by drowning and submersion in natural water, initial encounter, +2307 more
Contextual Map
Every relationship of W16.91XA in one view: hierarchy, official tabular instructions in both directions, clinical classification, risk adjustment, MS-DRG participation, index terms and change history — each edge carrying the CMS source it derives from.
Hierarchy
- V00-Y99 — Chapter 20: External Causes of Morbidity (V00-Y99) (V00-Y99) [Hierarchy]
- W00-X58 — Other external causes of accidental injury [Hierarchy]
- W00-W19 — Slipping, tripping, stumbling and falls [Hierarchy]
Referenced by Excludes1 notes
- V90 — Drowning and submersion due to accident to watercraft [Excludes1](via W16.-): “fall into water not from watercraft (W16.-)” · check together
- V92 — Drowning and submersion due to accident on board watercraft, without accident to watercraft [Excludes1](via W16.-): “fall into water without watercraft (W16.-)” · check together
- W65 — Accidental drowning and submersion while in bath-tub [Excludes1](via W16.-): “accidental drowning and submersion due to fall into water (W16.-)” · check together
- W65-W74 — Accidental non-transport drowning and submersion (W65-W74) [Excludes1](via W16.-): “accidental drowning and submersion due to fall into water (W16.-)” · check together
- W67 — Accidental drowning and submersion while in swimming-pool [Excludes1](via W16.-): “accidental drowning and submersion due to fall into water (W16.-)” · check together
- W69 — Accidental drowning and submersion while in natural water [Excludes1](via W16.-): “accidental drowning and submersion due to fall into water (W16.-)” · check together
- W73 — Other specified cause of accidental non-transport drowning and submersion [Excludes1](via W16.-): “accidental drowning and submersion due to fall into water (W16.-)” · check together
- W74 — Unspecified cause of accidental drowning and submersion [Excludes1](via W16.-): “accidental drowning and submersion due to fall into water (W16.-)” · check together
Referenced by Use Additional Code instructions
- W21.4 — Striking against diving board [Use Additional Code](via W16.-): “code for subsequent falling into water, if applicable (W16.-)” · check together
Clinical classification (CCSR)
- EXT002 — External cause codes: drowning/submersion; initial encounter [CCSR]
- EXT020 — External cause codes: intent of injury, accidental/unintentional [CCSR]
Nearest codes (40)
- W16 — Fall, jump or diving into water [Sibling]
- W16.722 — Jumping or diving from boat striking bottom causing other injury [Sibling]
- W16.722A — Jumping or diving from boat striking bottom causing other injury, initial encounter [Sibling]
- W16.722D — Jumping or diving from boat striking bottom causing other injury, subsequent encounter [Sibling]
- W16.722S — Jumping or diving from boat striking bottom causing other injury, sequela [Sibling]
- W16.8 — Jumping or diving into other water [Sibling]
- W16.81 — Jumping or diving into other water striking water surface [Sibling]
- W16.811 — Jumping or diving into other water striking water surface causing drowning and submersion [Sibling]
- and 32 more
Frequently Asked Questions (FAQ) & Clinical Guidance
Does W16.91XA require a 7th character?
Yes. The appropriate 7th character is to be added to each code from category W16.
Nearest Codes in This Family
Official ICD-10-CM classifications closest to W16.91XA in its code family, with their registry titles.
- W16.832A — Jumping or diving into other water striking wall causing other injury, initial encounter
- W16.832D — Jumping or diving into other water striking wall causing other injury, subsequent encounter
- W16.832S — Jumping or diving into other water striking wall causing other injury, sequela
- W16.9 — Jumping or diving into unspecified water
- W16.91 — Jumping or diving into unspecified water causing drowning and submersion
- W16.91XD — Jumping or diving into unspecified water causing drowning and submersion, subsequent encounter
- W16.91XS — Jumping or diving into unspecified water causing drowning and submersion, sequela
- W16.92 — Jumping or diving into unspecified water causing other injury
- W16.92XA — Jumping or diving into unspecified water causing other injury, initial encounter
- W16.92XD — Jumping or diving into unspecified water causing other injury, subsequent encounter