2025 ICD-10-CM code Q85.09
(Active) Effective Date: N/A Revision Date: N/A Deletion Date: N/A Other congenital malformations - Other neurofibromatosis Congenital malformations, deformations and chromosomal abnormalities (Q00-Q99) Feed
This code signifies other neurofibromatosis, a group of genetic disorders causing tumors to grow along nerves.
No specific modifiers are directly associated with this diagnostic code; however, modifiers may be used in conjunction with procedural codes related to the diagnosis and treatment of neurofibromatosis.
Medical necessity for coding Q85.09 is established through comprehensive clinical evaluation, including the presence of suggestive symptoms and confirmation through appropriate diagnostic testing. The necessity for ongoing monitoring and management depends on the presence of complications or potential risks.
The clinical responsibility involves diagnosing and managing the neurofibromatosis, which may necessitate genetic testing, imaging studies (MRI, CT scans), and ongoing monitoring for tumor growth and any associated complications.Treatment may include surgery to remove tumors, medication to manage symptoms, and supportive care.
- Congenital malformations, deformations and chromosomal abnormalities (Q00-Q99)
- Q85 - Other neurofibromatosis
In simple words: This code is for a type of neurofibromatosis, a genetic condition causing noncancerous or cancerous tumors to form along nerves.Doctors use this code to describe a specific type of neurofibromatosis that needs further explanation to differentiate it from other similar types.
Q85.09, Other neurofibromatosis, is an ICD-10-CM code used to classify a specific type of neurofibromatosis not otherwise specified. Neurofibromatosis is a group of inherited genetic disorders that cause tumors to grow along nerves throughout the body.These tumors can be benign (non-cancerous) or malignant (cancerous). The specific type of neurofibromatosis indicated by this code requires further clinical clarification to distinguish it from other specified types within the Q85 code range. This code is used for diagnosis and reimbursement purposes and should not be used on maternal records.The clinical documentation should specify the type and severity of the neurofibromatosis.
Example 1: A patient presents with multiple café-au-lait spots and is diagnosed with neurofibromatosis type 1 (NF1), but the specific subtype is unclear; Q85.09 is used pending further investigations., A patient with a family history of neurofibromatosis undergoes genetic testing, which reveals a novel mutation resulting in a unique phenotype; Q85.09 is used to reflect the unclassified nature of the condition., A child presents with symptoms suggestive of neurofibromatosis, but diagnostic tests are inconclusive; Q85.09 serves as a placeholder until further evaluation clarifies the specific type.
Detailed clinical history, including family history of neurofibromatosis; physical examination findings documenting café-au-lait spots, neurofibromas, or other characteristic features; imaging studies (MRI, CT scans) to visualize tumors; genetic testing results to identify specific mutations if available; and any other relevant diagnostic or procedural information.
** This code should be used cautiously, and only when a more specific code for neurofibromatosis is not available.Always ensure the documentation supports the coding choice.Further sub-classification of neurofibromatosis may be possible based on clinical findings and genetic testing results.
- Payment Status: Active
- Modifier TC rule: Not applicable, as this is a diagnostic code.
- Specialties:Medical Genetics, Neurology, Neurosurgery, Oncology
- Place of Service:Office, Inpatient Hospital, Outpatient Hospital, Other Place of Service