ICD-10-CM Diagnosis Code Y21.4XXS
Diagnosis Code: Y21.4XXS (Raw: Y214XXS)
Description: Drowning and submersion in natural water, undetermined intent, sequela
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 Y21.4XXS is designated for Drowning and submersion in natural water, undetermined intent, sequela. 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.
