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. Abruptly stopping plaquenil Hydroxychloroquine and notalgia paresthetica 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. Many systemic medications may cause retinal toxicity. 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. H35.00 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 H35.00 became effective on October 1, 2019. This is the American ICD-10-CM version of H35.00 - other international versions of ICD-10 H35.00 may differ. 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 ICD-10-CM Diagnosis Code T37.8X5A Adverse effect of., Hydroxychloroquine-Induced Retinal Toxicity - American. Plaquenil pill side effect Oct 01, 2019 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. This is the American ICD-10-CM version of Z79.899 - other international versions of ICD-10 Z79.899 may differ. ICD-10-CM Diagnosis Code Z79.899 Other long term.. ICD-10-CM Diagnosis Code H35.00 Unspecified background.. ICD-9-CM Diagnosis Code 362.10 Background.. 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. Plaquenil-induced maculopathy is a form of retinal toxicity that is associated with long-term use of of the anti-inflammatory medication plaquenil. The drug-induced maculopathy is associated with the following risk factors Cumulative dose level of 1,000 grams of plaquenil. Patients with existing retinal or macular disease. Plaquenil, hydroxychloroquine HCQ, is an anti-malarial medication that has been proven to be useful in the treatment of patients with rheumatoid arthritis RA, systemic lupus erythematosus SLE and other inflammatory and autoimmune diseases.