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ICD-10-CM Diagnosis Code P91.63
Diagnosis Code: P91.63 (Raw: P9163)
Description: Severe hypoxic ischemic encephalopathy [HIE]
Classification: International Classification of Diseases, Tenth Revision, Clinical Modification (ICD-10-CM)
Fiscal Year: 2026
CMS Section 111 Status: Valid for reporting.
Overview & Clinical Details
ICD-10-CM code P91.63 is designated for Severe hypoxic ischemic encephalopathy [HIE]. 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.