D66 is the ICD-10 code for Hereditary factor VIII deficiency. It is a three-character category that is not subdivided further. It belongs to the block D65–D69 (Coagulation defects, purpura and other haemorrhagic conditions) in Chapter III, Diseases of the blood and blood-forming organs and certain disorders involving the immune mechanism.
- Code type
- Category (3 characters)
- Chapter
- III · D50–D89
- Classification
- WHO ICD-10, 2019 version
What D66 includes
Conditions and terms that are coded here.
- Deficiency factor VIII (with functional defect)
- Haemophilia:
- NOS
- A
- classical
What D66 excludes
Conditions that look similar but belong under another code.
- factor VIII deficiency with vascular defect D68.0
D66 in national editions
Countries report with their own edition of ICD-10. Most keep the WHO code and add more specific codes beneath it.
D66Arvelig mangel på koagulasjonsfaktor VIII
DD66Arvelig faktor VIII-mangel
- DD669Hæmofili A
D66Hyytymistekijä VIII:n perinnöllinen puute
D66Hereditärer Faktor-VIII-Mangel
D66Carence héréditaire en facteur VIII
D66hereditaire factor VIII-deficiëntie
D66Hereditary factor VIII deficiency
Based on the World Health Organization’s International Statistical Classification of Diseases and Related Health Problems, 10th revision (ICD-10), 2019 version, and the national editions published by each country’s health authority. This page is a reference, not coding advice; follow your national coding rules when you report.
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