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K09 ICD-10-CA category: Cysts of oral region, not elsewhere classified

K09 isn’t a code on its own. Choose one of the 5 codes beneath it, the one the documentation supports.

Official description

K09

Cysts of oral region, not elsewhere classified

ICD-10-CA · Canada

Codes in K09

K09 isn’t a code on its own. Open the code that matches what the note documents.

K09.0Developmental odontogenic cystsK09.1Developmental (nonodontogenic) cysts of oral regionK09.2Other cysts of jawK09.8Other cysts of oral region, not elsewhere classifiedK09.9Cyst of oral region, unspecified

Notes for K09

As CIHI prints them, with any note K09 takes from the headings above it.

Includes

  • Lesions showing histological features both of aneurysmal cyst and of another fibro-osseous lesion

Excludes

Conditions classified elsewhere.

  • Radicular cyst (K04.8)
  • 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 sits

  1. 1ChapterChapter 11: Diseases of the digestive system (K00-K93)
  2. 2Block K00-K14Diseases of oral cavity, salivary glands and jaws
  3. 3Category K09Cysts of oral region, not elsewhere classified

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.

See K09 in the CIHI source

Frequently asked questions

Is K09 a valid ICD-10-CA code?

No. K09 (Cysts of oral region, not elsewhere classified) is a category heading in CIHI’s ICD-10-CA FY 2026–2027 release. It holds 5 codes; record the one the documentation supports.

Where is K09 in ICD-10-CA?

K09 sits under 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?

ICD-10-CA lists Includes, Excludes notes for K09, 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.

Codes beside K09

K00Disorders of tooth development and eruptionK01Embedded and impacted teethK02Dental cariesK03Other diseases of hard tissues of teethK04Diseases of pulp and periapical tissuesK05Gingivitis and periodontal diseasesK06Other disorders of gingiva and edentulous alveolar ridgeK07Dentofacial anomalies [including malocclusion]K08Other disorders of teeth and supporting structuresK10Other diseases of jawsK11Diseases of salivary glandsK12Stomatitis and related lesionsK13Other diseases of lip and oral mucosaK14Diseases of tongue