2025 ICD-10-CM code K09.8
(Active) Effective Date: N/A Revision Date: N/A Deletion Date: N/A Diseases of the oral cavity and salivary glands - Cysts of oral region XI Diseases of the digestive system Feed
This code classifies other cysts found in the oral region that do not fit into other specific categories.
Medical necessity is established by the presence of a cyst causing symptoms, impacting oral function (e.g., difficulty speaking or swallowing), or presenting a risk of infection or malignancy.Documentation should support the need for evaluation, biopsy, or treatment of the cyst.
The clinical responsibility rests with the dentist or oral surgeon who diagnoses and manages the cyst.This involves a comprehensive oral examination, possibly imaging studies (like an x-ray or CT scan), and a decision regarding treatment. Treatment may range from observation to surgical excision.
In simple words: This code is for any type of cyst in your mouth that isn't specifically another kind of cyst.Doctors use this when the cyst doesn't match other more detailed descriptions.
K09.8, "Other cysts of oral region, not elsewhere classified," is an ICD-10-CM code used to classify various cysts located in the oral cavity that are not specifically categorized under other codes within the K09 category.Examples include dermoid cysts, epidermoid cysts, and lymphoepithelial cysts.This code is used when the cyst's nature doesn't fit the descriptions of developmental odontogenic cysts (K09.0), developmental nonodontogenic cysts (K09.1), or other cysts of the jaw (K09.2). Accurate documentation must specify the cyst's location and characteristics for appropriate coding.
Example 1: A 35-year-old patient presents with a painless, slow-growing swelling on their tongue.A biopsy reveals a dermoid cyst.Code K09.8 is assigned., A 10-year-old patient has a small, firm nodule on their gum discovered during a routine dental check-up.Imaging and biopsy confirm an epidermoid cyst.Code K09.8 is applied., A 60-year-old presents with a swelling near their wisdom tooth that is determined to be a lymphoepithelial cyst. The cyst is excised. K09.8 is the appropriate code.
Detailed clinical description of the cyst, including location, size, duration, associated symptoms (pain, discomfort, infection), and results of any diagnostic tests (biopsy, imaging).The report should clearly state why the cyst doesn't match other, more specific K09 codes.
** The selection of K09.8 requires careful consideration of other K09 codes.If there's any doubt, consult the official ICD-10-CM guidelines or seek guidance from a coding specialist.
- Payment Status: Active
- Specialties:Dentistry, Oral and Maxillofacial Surgery
- Place of Service:Office, Hospital (Inpatient/Outpatient), Ambulatory Surgical Center