K09 is the ICD-10 code for Cysts of oral region, not elsewhere classified. It is a three-character category divided into 5 subcodes; use the subcode whenever the record supports that level of detail. It belongs to the block K00–K14 (Diseases of oral cavity, salivary glands and jaws) in Chapter XI, Diseases of the digestive system.
- Code type
- Category (3 characters)
- Chapter
- XI · K00–K93
- Classification
- WHO ICD-10, 2019 version
What K09 includes
Conditions and terms that are coded here.
- lesions showing histological features both of aneurysmal cyst and of another fibro-osseous lesion
What K09 excludes
Conditions that look similar but belong under another code.
- radicular cyst K04.8
Subcodes of K09
K09 in national editions
Countries report with their own edition of ICD-10. Most keep the WHO code and add more specific codes beneath it.
K09Cystor i mun- och käkregionen som ej klassificeras på annan plats
DK09Cyster i mundregionen IKA
K09Muualla luokittamattomat suun alueen kystat
K09Zysten der Mundregion, anderenorts nicht klassifiziert
K09Kystes de la région buccale, non classés ailleurs
K09cysten van mondgebied, niet elders geclassificeerd
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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