ICDcodes.org
FY2027

W16.1 — Fall into natural body of water

Not billable

Is W16.1 billable?

No — W16.1 is a non-billable header code. W16.1 groups more specific codes and cannot be submitted on a claim. A valid ICD-10-CM code must be reported at the highest level of specificity available in its branch. Select one of the 18 billable codes beneath W16.1.

Billable codes under this header

W16.1 at a glance

CodeW16.1
DescriptionFall into natural body of water
BillableNo — header code
Code setICD-10-CM FY2027
Valid for encountersOctober 1, 2026 – September 30, 2027

Inclusion terms

Alternative wording in documentation that is classified to W16.1.

  • Fall into lake
  • Fall into open sea
  • Fall into river
  • Fall into stream

Excludes1 — never code together — inherited from W00-W19

The conditions below can never be reported together with W16.1 on the same claim. An Excludes1 note means the two conditions cannot occur in the same patient, so reporting both is a coding error.

  • assault involving a fall (Y01-Y02)
  • fall from animal (V80.-)
  • fall (in) (from) machinery (in operation) (W28-W31)
  • fall (in) (from) transport vehicle (V01-V99)
  • intentional self-harm involving a fall (X80-X81)

Excludes1 — never code together — inherited from W16

The conditions below can never be reported together with W16.1 on the same claim. An Excludes1 note means the two conditions cannot occur in the same patient, so reporting both is a coding error.

  • accidental non-watercraft drowning and submersion not involving fall (W65-W74)
  • effects of air pressure from diving (W94.-)
  • fall into water from watercraft (V90-V94)
  • hitting an object or against bottom when falling from watercraft (V94.0)

Excludes2 — not included here — inherited from W00-W19

The conditions below are not part of W16.1, but a patient may have both at the same time. When documentation supports it, W16.1 and the excluded code may both be reported.

  • at risk for fall (history of fall) Z91.81
  • fall (in) (from) burning building (X00.-)
  • fall into fire (X00-X04, X08)

Excludes2 — not included here — inherited from W16

The conditions below are not part of W16.1, but a patient may have both at the same time. When documentation supports it, W16.1 and the excluded code may both be reported.

  • striking or hitting diving board (W21.4)

What codes fall under W16.1? (3)

How long has W16.1 existed?

W16.1 has been in ICD-10-CM since at least FY2016, the earliest fiscal year on record here.

Derived from the official order files for FY2016–FY2026. FY2017 and FY2020 publish no order file, so those years are not covered.

What other codes are in the W16 family? (9)