One such commonly used medication for dermatologic and rheumatologic inflammatory conditions is hydroxychloroquine (Plaquenil), a chloroquine derivative. It is used to treat many diseases including malaria, rheumatoid arthritis and systemic lupus erythematosus. Plaquenil toxicity symptoms When taking aralen should i be using an antiacid Is it safe to take hydroxychloroquine while pregnant Avastin hydroxychloroquine Aug 06, 2014 Hydroxychloroquine, sold under the brand name Plaquenil Sanofi-Aventis, is an antimalarial drug that has gained widespread use in treating various autoimmune diseases, including systemic lupus erythematosus and rheumatoid arthritis. 1 By some estimates, more than 150,000 patients are on long-term therapy with this medication in America alone. 2 Retinal toxicity associated with HCQ use is relatively rare, estimated at 1 percent after five years and rising with continued therapy. 3 However. Researchers suggest that one central point in both eyes indicates toxicity and one should have a low threshold with regards to any defects. 19 The misinterpreted visual field defect using the larger testing strategies could potentially delay the diagnosis of Plaquenil toxicity resulting in irreversible vision loss. Due to the possibility of. ICD-9-CM E931.4 is a billable medical code that can be used to indicate a diagnosis on a reimbursement claim, however, E931.4 should only be used for claims with a date of service on or before September 30, 2015. For claims with a date of service on or after October 1, 2015, use an equivalent ICD-10-CM code or codes. It is imperative that patients and physicians are aware of and watch for this drug’s ocular side effects. Retinal toxicity from hydroxychloroquine is rare, but even if the medication is discontinued, vision loss may be irreversible and may continue to progress. Plaquenil toxicity icd9 Humphrey visual field findings in hydroxychloroquine toxicity, How to Succeed in Plaquenil Screenings Plaquenil free H35.389 is a billable code used to specify a medical diagnosis of toxic maculopathy, unspecified eye. The code is valid for the year 2020 for the submission of HIPAA-covered transactions. The code is valid for the year 2020 for the submission of HIPAA-covered transactions. ICD-10-CM Code H35.389 - Toxic maculopathy, unspecified eye. ICD-9-CM Diagnosis Code E931.4 Antimalarials and drugs.. New Plaquenil Guidelines. Question Which code diagnosis and CPT should I use for a baseline Plaquenil exam?Ohio Subscriber Answer Plaquenil is the trade name for hydroxychloroquine, a medication used to treat rheumatoid arthritis and lupus. ICD-9-CM Diagnosis Code 362.55 Toxic maculopathy ICD-9-CM 362.55 is a billable medical code that can be used to indicate a diagnosis on a reimbursement claim, however, 362.55 should only be used for claims with a date of service on or before September 30, 2015. ICD-9-CM 362.10 is a billable medical code that can be used to indicate a diagnosis on a reimbursement claim, however, 362.10 should only be used for claims with a date of service on or before September 30, 2015.