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W16.92XD vs W28

W16.92XD (Jumping or diving into unspecified water causing other injury, subsequent encounter) compared with W28 (Contact with powered lawn mower), from the official CMS tabular data. Do not report these codes together: the official tabular list marks them Excludes1.

Relationship

Conflict

Excludes1 conflict

W16.92XD
Jumping or diving into unspecified water causing other injury, subsequent encounter
↔
W28
Contact with powered lawn mower

Not coded here — these two are mutually exclusive.

“fall (in) (from) machinery (in operation) (W28-W31)”

An Excludes1 note means the two conditions cannot occur together, so the pair should not be reported for the same encounter. The sole exception is when the conditions are documented as unrelated to each other.

Source: CMS ICD-10-CM tabular instructional notes; ICD-10-CM Official Guidelines, Section I.A.12.a

Can these codes be reported together?

No — do not report together. W16.92XD carries an Excludes1 note covering W28: “fall (in) (from) machinery (in operation) (W28-W31)”

Sole exception: when the two conditions are documented as unrelated to each other (ICD-10-CM Official Guidelines, Section I.A.12.a).

Side by side

W16.92XDJumping or diving into unspecified water causing other injury, subsequent encounterW28Contact with powered lawn mower
Billing statusBillableNon-billable header

Report instead: W28.XXXA, W28.XXXD, W28.XXXS

ClassificationV00-Y99 — External Causes of Morbidity (V00-Y99)V00-Y99 — External Causes of Morbidity (V00-Y99)
DefinitionJumping or diving into unspecified water causing other injury, subsequent encounter is a billable ICD-10-CM diagnosis code (W16.92D).Contact with powered lawn mower is a non-billable ICD-10-CM category code (W28).
7th characterThe appropriate 7th character is to be added to each code from category W16The appropriate 7th character is to be added to code W28
Includes—
Powered lawn mower (commercial) (residential)
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Derived from the official CMS ICD-10-CM tabular data (FY2026). Not billing advice; verify sequencing rules for the encounter. All data sources