Testing services performed should have the high-risk medication diagnosis as the primary diagnosis since that is the reason for the testing.. Atients taking Plaquenil (hydroxychloroquine, Sanofi-Aventis) on a long-term basis may leave you scratching your head when it comes to coding the patient encounters. Hydroxychloroquine liver toxicity alcohol What is plaquenil toxicity The ICD-10 section that covers long-term drug therapy is Z79, with many subsections and specific diagnosis codes. Because Plaquenil does not have its own specific category, clinicians should use Z79.899—Other Long Term Current Drug Therapy. But getting the right code is just one step in the process of correctly documenting the encounter. Hydroxychloroquine is a quinoline medicine used to treat or prevent malaria, a disease caused by parasites that enter the body through the bite of a mosquito. Malaria is common in areas such as Africa, South America, and Southern Asia. This medicine is not effective against all strains of malaria. Answer When billing Plaquenil examinations, or any other high risk medication exams, it is appropriate to bill the systemic disease or any ocular manifestations as the primary diagnosis since many payers may not reimburse for the high-risk medication diagnosis as a stand-alone diagnosis. Testing services performed should have the high-risk medication diagnosis as the primary diagnosis since that is the reason for the testing. While this clinical example focuses on Plaquenil, the concept works for any long-term medication. Although coding for long-term medications is not a difficult process, it often involves communicating with other physicians or specialists to obtain accurate information. Icd10 plaquenil therapy The Web's Free 2019/2020 ICD-10-CM/PCS Medical Coding Reference, Hydroxychloroquine Uses, Dosage & Side Effects - Plaquenil diopsys mfergDoes plaquenil cause eye problemsPlaquenil dissolving immune complexes Other long term current drug therapy 2016 2017 2018 2019 2020 Billable/Specific Code POA Exempt Z79.899 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes. The 2020 edition of ICD-10-CM Z79.899 became effective on October 1, 2019. ICD-10-CM Diagnosis Code Z79.899 Other long term.. Correct diagnosis for a Plaquenil exam - American Academy.. ICD-10 Code for Completion of Plaquenil Treatment.. Plaquenil, widely used to treat lupus, rheumatoid arthritis and other inflammatory and dermatologic conditions, is very effective, and “the risk of toxicity in the first five years for someone without special risk factors is very low,” Dr. Marmor said. However, risk increases with duration of use. I was told from the start by my rheumatologist I would have to have eye exams including visual field exams every six months due to the plaquenil therapy. My first two exams did include these tests. But my next six month appointment is coming up, and they told me I didn't need the visual field test this time so the appointment would be shorter. Z79 is a non-billable ICD-10 code for Long term current drug therapy. It should not be used for HIPAA-covered transactions as a more specific code is available to choose from below.