V91.21XA
Fall due to collision between passenger ship and other watercraft or other object, initial encounter
V91.21XA (also written V9121XA) is a billable ICD-10-CM diagnosis code for fall due to collision between passenger ship and other watercraft or other object, initial encounter. It is part of the FY2027 code set, effective October 1, 2026. It is one of the 141 codes in category V91 (Other injury due to accident to watercraft). Its 7th character, A, means initial encounter. Its coding notes include 4 Excludes1 entries and 1 Excludes2 entry.
7th character
Category V91 requires a 7th character. V91.21 has only 5 characters, so a placeholder X fills the 6th position.
Guidelines tip
From the FY2027 Official Guidelines. ICD10Ref adds no rules of its own.
An external cause code is never a principal or first-listed diagnosis. Its 7th character is assigned for each encounter and should match the injury or condition code.
Excludes1
Not coded here. The listed conditions generally should not be reported together.
Excludes2
Not included here. Both codes may be reported if the patient has both conditions.
Includes
Further defines or gives examples of the content of the category.
- any injury except drowning and submersion as a result of an accident to watercraft
Inclusion terms
Conditions classified to this code.
- Fall due to collision between Ferry-boat and other watercraft or other object
- Fall due to collision between Liner and other watercraft or other object
Notes
- select the specified type of watercraft that the victim was on at the time of the collision
Also from chapter/block level (1 note)
- This chapter permits the classification of environmental events and circumstances as the cause of injury, and other adverse effects. Where a code from this section is applicable, it is intended that it shall be used secondary to a code from another chapter of the Classification indicating the nature of the condition. Most often, the condition will be classifiable to Chapter 19, Injury, poisoning and certain other consequences of external causes (S00-T88). Other conditions that may be stated to be due to external causes are classified in Chapters I to XVIII. For these conditions, codes from Chapter 20 should be used to provide additional information as to the cause of the condition.