ICD-10 Code Y21.3XXA - Drowning and submersion after fall into swimming pool, undetermined intent, initial encounter

ICD-10-CM Diagnosis Code Y21.3XXA

Diagnosis Code: Y21.3XXA (Raw: Y213XXA)

Description: Drowning and submersion after fall into swimming pool, undetermined intent, initial encounter

Classification: International Classification of Diseases, Tenth Revision, Clinical Modification (ICD-10-CM)

Fiscal Year: 2026

CMS Section 111 Status: Valid for reporting (Excluded from No-Fault liability reporting).

Overview & Clinical Details

ICD-10-CM code Y21.3XXA is designated for Drowning and submersion after fall into swimming pool, undetermined intent, initial encounter. In medical documentation and insurance billing, this code is utilized to specify medical diagnosis for patient records, reimbursement workflows, and compliance under CMS Section 111 mandatory insurer reporting guidelines.