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2025 ICD-10-CM code K09.1

Developmental (nonodontogenic) cysts of the oral region.

Refer to the official ICD-10-CM coding guidelines for proper selection of this code based on the specific type of cyst and clinical presentation.

Medical necessity for treatment of oral cysts is typically established by the presence of symptoms (pain, swelling, infection), functional impairment (difficulty chewing, swallowing, speaking), or cosmetic concerns.In asymptomatic cases, periodic monitoring may be sufficient.Surgical intervention may be medically necessary to prevent complications such as infection or facial deformity.

Diagnosis and management of oral cysts, potentially including surgical excision or other interventions depending on cyst size and location.Referral to an oral and maxillofacial surgeon may be necessary for complex cases.

IMPORTANT:K09.0 (Developmental odontogenic cysts), K09.8 (Other cysts of oral region, not elsewhere classified), K09.9 (Cyst of oral region, unspecified)

In simple words: This code describes non-cancerous fluid-filled sacs (cysts) in the mouth that aren't related to the teeth. These cysts develop during growth and aren't caused by an infection or injury.

K09.1, Developmental (nonodontogenic) cysts of oral region, encompasses various non-tooth-originating cysts in the mouth.These cysts are developmental in nature and are not caused by infection or trauma.Specific examples include incisive canal cysts, palatine papilla cysts, globulomaxillary cysts, median palatal cysts, nasoalveolar cysts, nasolabial cysts, and nasopalatine duct cysts.The code excludes cysts of the jaw (M27.-) and radicular cysts (K04.8).

Example 1: A 35-year-old patient presents with a painless swelling in the midline of the palate.Imaging reveals a median palatal cyst.K09.1 is assigned., A 20-year-old patient presents with a swelling in the anterior maxilla.A radiograph shows a globulomaxillary cyst.The cyst is surgically excised.K09.1 is assigned., A 50-year-old patient has a routine dental exam revealing a nasopalatine duct cyst on radiographic imaging.The cyst is asymptomatic and requires monitoring. K09.1 is assigned.

Detailed patient history, clinical examination findings (including location and size of the cyst), relevant imaging studies (e.g., panoramic radiographs, CT scan), and pathology reports (if surgical excision is performed) are necessary for accurate coding.

** Accurate diagnosis and proper documentation are crucial for appropriate coding.Histological confirmation may be necessary to differentiate between odontogenic and non-odontogenic cysts.

** Only Enterprise users with EHR integration can access case-specific answers. Click here to request access.

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