V93.4 vs V93.61XD

V93.4 (Struck by falling object on board watercraft) compared with V93.61XD (Machinery accident on board passenger ship, subsequent encounter), from the official CMS tabular data. Do not report these codes together: the official tabular list marks them Excludes1.

Relationship

Conflict

Excludes1 conflict

V93.61XD

Machinery accident on board passenger ship, subsequent encounter

↔

V93.4

Struck by falling object on board watercraft

Not coded here — these two are mutually exclusive.

“machinery explosion on board watercraft (V93.4-)”

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. V93.61XD carries an Excludes1 note covering V93.4: “machinery explosion on board watercraft (V93.4-)”

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

	V93.4Struck by falling object on board watercraft	V93.61XDMachinery accident on board passenger ship, subsequent encounter
Billing status	Non-billable header	Billable
Classification	V00-Y99 — External Causes of Morbidity (V00-Y99)	V00-Y99 — External Causes of Morbidity (V00-Y99)
Definition	Struck by falling object on board watercraft is a non-billable ICD-10-CM category code (V93.4).	Machinery accident on board passenger ship, subsequent encounter is a billable ICD-10-CM diagnosis code (V93.61D).
7th character	The appropriate 7th character is to be added to each code from category V93	The appropriate 7th character is to be added to each code from category V93
Includes	Hit by falling object on board watercraft	Machinery accident on board Ferry-boat Machinery accident on board Liner

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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