ICD-10-CM Code For Trisomy 18 And Trisomy 13: Group Overview
The International Classification of Diseases, Tenth Revision, Clinical Modification (ICD-10-CM) code group Q91 includes diagnoses for trisomy 18 (Edwards syndrome) and trisomy 13 (Patau syndrome), congenital chromosomal disorders characterized by multiple structural and developmental anomalies. These ICD-10-CM diagnosis codes are used to document the presence and specific form of autosomal trisomies in newborns and patients with congenital anomalies, capturing disease severity, organ involvement, and clinical complexity relevant to this group. Accurate coding within the ICD-10-CM Q91 group supports proper claim adjudication, complete clinical documentation, and appropriate reimbursement.
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ICD-10-CM Q91: Trisomy 18 And Trisomy 13 Overview
The ICD-10-CM Q91 group represents trisomy 18 (Edwards syndrome) and trisomy 13 (Patau syndrome), which are chromosomal abnormalities affecting multiple organ systems with marked developmental and structural anomalies. These conditions target congenital multisystem and neurodevelopmental impairments and often involve cardiac, craniofacial, and central nervous system malformations. Accurate coding matters for appropriate clinical documentation and can affect reimbursement and resource allocation for complex congenital care.