Skip to main content

W18.49XD vs W28

W18.49XD (Other slipping, tripping and stumbling without falling, 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

W18.49XD
Other slipping, tripping and stumbling without falling, 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. W18.49XD 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

W18.49XDOther slipping, tripping and stumbling without falling, 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)
DefinitionOther slipping, tripping and stumbling without falling, subsequent encounter is a billable ICD-10-CM diagnosis code (W18.49D).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 W18The appropriate 7th character is to be added to code W28
Includes—
Powered lawn mower (commercial) (residential)
Edit this comparisonCheck a whole claim

Derived from the official CMS ICD-10-CM tabular data (FY2026). Not billing advice; verify sequencing rules for the encounter. All data sources