2025 ICD-10-CM code Q85.89
(Active) Effective Date: N/A Revision Date: N/A Deletion Date: N/A Congenital malformations - Other phakomatoses Congenital malformations, deformations and chromosomal abnormalities (Q00-Q99) Feed
Other phakomatoses, not elsewhere classified.
Medical necessity for coding Q85.89 is established by documenting the clinical findings and diagnostic criteria consistent with a specific phakomatosis. This demonstrates the need for ongoing medical management of the condition, including regular monitoring and intervention for associated complications.
The clinical responsibility for this code lies with the physician who diagnoses and manages the patient's phakomatosis.This involves a thorough clinical examination, genetic testing, imaging studies (as needed) and ongoing monitoring for complications.
- Congenital malformations, deformations and chromosomal abnormalities (Q00-Q99)
- Q85.89 falls under the broader category of Q85.8 - Other Cowden syndrome, and Q85 - Other phakomatoses.
In simple words: This code is for rare genetic conditions causing benign tumors in multiple body parts.Examples include Peutz-Jeghers and Sturge-Weber syndromes. The doctor needs to specify the exact condition and affected organs for correct billing.
This ICD-10-CM code classifies various phakomatoses (a group of genetic disorders characterized by benign tumors affecting multiple organ systems) that do not fit into more specific categories.Examples include Peutz-Jeghers syndrome and Sturge-Weber syndrome.It is crucial to document the specific features and affected organs to ensure accurate coding.
Example 1: A 25-year-old female presents with multiple mucocutaneous pigmented spots and gastrointestinal polyposis.Diagnosis of Peutz-Jeghers syndrome is made after a thorough evaluation including genetic testing.Q85.89 is used to code this., A 10-year-old male presents with a port-wine stain on his face and seizures.Neuroimaging confirms leptomeningeal angiomatosis consistent with Sturge-Weber syndrome.Q85.89 is assigned., A 40-year-old patient with a family history of Cowden syndrome is found to have multiple hamartomas in various organs.While there might be a more specific code available within Q85.8, depending on the manifestations, Q85.89 could be used for the less specific diagnosis.
Detailed clinical history, physical examination findings, relevant laboratory and imaging results (such as genetic testing, CT scans, MRI scans, etc.), and diagnostic criteria met for the specific phakomatosis.
** This code is not for use on maternal records.It excludes inborn errors of metabolism (E70-E88).
- Payment Status: Active
- Specialties:Genetics, Neurology, Dermatology, Gastroenterology
- Place of Service:Office, Hospital, Inpatient, Outpatient