K09.9 ICD-10-CA code: Cyst of oral region, unspecified
K09.9 is the ICD-10-CA code for “Cyst of oral region, unspecified” in CIHI’s FY 2026–2027 release, in effect from Apr 1, 2026.
Official description
K09.9Cyst of oral region, unspecified
Short description: Cyst of oral region unspecified
ICD-10-CA · Canada · Also written K099
Index terms
Entries in CIHI’s alphabetical index that lead to K09.9. Searching the index by the condition the note names is how coders reach this code.
- Cyst (colloid) (mucous) (retention) (simple), oral, region
- Cyst (colloid) (mucous) (retention) (simple), oral, soft tissue
Notes for K09.9
As CIHI prints them, with any note K09.9 takes from the headings above it.
Includes
- Lesions showing histological features both of aneurysmal cyst and of another fibro-osseous lesionFrom K09 Cysts of oral region, not elsewhere classified
Excludes
Conditions classified elsewhere.
- Radicular cyst (K04.8)From K09 Cysts of oral region, not elsewhere classified
- Certain:• conditions originating in the perinatal period (P00-P96)• infectious and parasitic diseases (A00-B99)complications of pregnancy, childbirth and the puerperium (O00-O99)congenital malformations, deformations and chromosomal abnormalities (Q00-Q99)endocrine, nutritional and metabolic diseases (E00-E90)injury, poisoning and certain other consequences of external causes (S00-T98)neoplasms (C00-D48)symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R99)From Chapter 11: Diseases of the digestive system (K00-K93)
Where K09.9 sits
- 1ChapterChapter 11: Diseases of the digestive system (K00-K93)
- 2Block K00-K14Diseases of oral cavity, salivary glands and jaws
- 3Category K09Cysts of oral region, not elsewhere classified
- 4Valid code K09.9Cyst of oral region, unspecified
Source and release
- Data release
- ICD-10-CA · FY 2026–2027
- Effective date
- Apr 1, 2026
- Publisher
- CIHI
This page is built from the ICD-10-CA catalog that Vero Codes reads when it suggests codes: Canadian Institute for Health Information’s FY 2026–2027 release, imported from the publisher’s file and checked against it. The description, notes and structured data come from the same record.
Frequently asked questions
What does ICD-10-CA code K09.9 mean?
K09.9 is the ICD-10-CA code for “Cyst of oral region, unspecified” in CIHI’s ICD-10-CA FY 2026–2027 release.
Where is K09.9 in ICD-10-CA?
K09.9 sits under K09 Cysts of oral region, not elsewhere classified, within K00-K14 Diseases of oral cavity, salivary glands and jaws, within Chapter 11: Diseases of the digestive system (K00-K93).
What coding notes apply to K09.9?
ICD-10-CA lists Includes, Excludes notes for K09.9, including those from the headings it sits under. They are listed on this page with where each one comes from.
Which ICD-10-CA release does this page use?
It uses CIHI’s FY 2026–2027 release, in effect from Apr 1, 2026 to Mar 31, 2027. It is a reference: confirm the code against the current list and the payer’s rules before you submit it.