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ICD-10-CM · FY 2026 APRIL UPDATE

W16.1

Fall into natural body of water

Diagnosis reference

Nonbillable category

This entry is a category or subcategory. Choose the appropriate billable descendant based on the clinical documentation.

Effective periodOctober 1, 2026–September 30, 2027
SourceCMS ICD-10-CM order file
ClassificationDiagnosis · clinical modification

Related entries

Up to 30 descendants in this category

CODEDESCRIPTIONTYPE
W16.11Fall into natural body of water striking water surfaceCategory
W16.111Fall into natural body of water striking water surface causing drowning and submersionCategory
W16.111AFall into natural body of water striking water surface causing drowning and submersion, initial encounterBillable
W16.111DFall into natural body of water striking water surface causing drowning and submersion, subsequent encounterBillable
W16.111SFall into natural body of water striking water surface causing drowning and submersion, sequelaBillable
W16.112Fall into natural body of water striking water surface causing other injuryCategory
W16.112AFall into natural body of water striking water surface causing other injury, initial encounterBillable
W16.112DFall into natural body of water striking water surface causing other injury, subsequent encounterBillable
W16.112SFall into natural body of water striking water surface causing other injury, sequelaBillable
W16.12Fall into natural body of water striking bottomCategory
W16.121Fall into natural body of water striking bottom causing drowning and submersionCategory
W16.121AFall into natural body of water striking bottom causing drowning and submersion, initial encounterBillable
W16.121DFall into natural body of water striking bottom causing drowning and submersion, subsequent encounterBillable
W16.121SFall into natural body of water striking bottom causing drowning and submersion, sequelaBillable
W16.122Fall into natural body of water striking bottom causing other injuryCategory
W16.122AFall into natural body of water striking bottom causing other injury, initial encounterBillable
W16.122DFall into natural body of water striking bottom causing other injury, subsequent encounterBillable
W16.122SFall into natural body of water striking bottom causing other injury, sequelaBillable
W16.13Fall into natural body of water striking sideCategory
W16.131Fall into natural body of water striking side causing drowning and submersionCategory
W16.131AFall into natural body of water striking side causing drowning and submersion, initial encounterBillable
W16.131DFall into natural body of water striking side causing drowning and submersion, subsequent encounterBillable
W16.131SFall into natural body of water striking side causing drowning and submersion, sequelaBillable
W16.132Fall into natural body of water striking side causing other injuryCategory
W16.132AFall into natural body of water striking side causing other injury, initial encounterBillable
W16.132DFall into natural body of water striking side causing other injury, subsequent encounterBillable
W16.132SFall into natural body of water striking side causing other injury, sequelaBillable

Use the complete reference

This reference does not reproduce the full tabular hierarchy, inclusion notes, Excludes1/2 notes, sequencing instructions, or seventh-character rules. Review the official tables and coding guidelines.

Open official CMS files

ICD-10-CM codes describe diagnoses. They do not have an independent Medicare PFS reimbursement amount, and billability alone does not establish coverage.