ICD-10-CM Diagnosis Code (2025)
Official Description for D66
Hereditary factor VIII deficiency
Coding Notes & Guidelines for D66
Excludes1: Not Coded Here
factor VIII deficiency with vascular defect (D68.0-)
Inclusion Terms
- Classical hemophilia
- Deficiency factor VIII (with functional defect)
- Hemophilia NOS
- Hemophilia A
About ICD-10-CM Code D66 (Hereditary factor VIII deficiency)
ICD-10-CM code D66 is a billable or specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes. The 2025 edition of ICD-10-CM D66 became effective on October 1, 2024.
This page provides detailed information about D66 - Hereditary factor VIII deficiency. It includes common terminology, coding guidelines such as "Includes," "Excludes1," and "Excludes2" notes, and information on required 7th characters. Utilizing this information correctly is essential for accurate medical coding and claims submission for conditions like Hereditary factor VIII deficiency.