V91 vs V93.38XD

V91 (Other injury due to accident to watercraft) compared with V93.38XD (Fall on board other unpowered watercraft, 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

V93.38XD

Fall on board other unpowered watercraft, subsequent encounter

↔

V91

Other injury due to accident to watercraft

Not coded here — these two are mutually exclusive.

“other injury due to accident to watercraft (V91.-)”

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. V93.38XD carries an Excludes1 note covering V91: “other injury due to accident to watercraft (V91.-)”

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

	V91Other injury due to accident to watercraft	V93.38XDFall on board other unpowered watercraft, subsequent encounter
Billing status	Non-billable header Report instead: V91.00XA, V91.00XD, V91.00XS, V91.01XA, V91.01XD	Billable
Classification	V00-Y99 — External Causes of Morbidity (V00-Y99)	V00-Y99 — External Causes of Morbidity (V00-Y99)
Definition	Other injury due to accident to watercraft is a non-billable ICD-10-CM category code (V91).	Fall on board other unpowered watercraft, subsequent encounter is a billable ICD-10-CM diagnosis code (V93.38D).
7th character	The appropriate 7th character is to be added to each code from category V91	The appropriate 7th character is to be added to each code from category V93
Includes	any injury except drowning and submersion as a result of an accident to watercraft	—

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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