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. Is mefloquine in plaquenil Does plaquenil help with inflammation Question Which diagnosis code should I use to report visual field tests for patients on Plaquenil? Arizona Subscriber Answer Plaquenil is the trade name for hydroxy-chloroquine, a medication used to treat rheumatoid arthritis and lupus. Question I have heard conflicting information regarding the correct diagnosis for a Plaquenil exam. Should I use high-risk medication as my primary code? Question What is an appropriate ICD-10 code for a patient who has completed their Plaquenil treatment? Answer Z09 Encounter for follow-up examination after completed treatment for conditions other than malignant neoplasm may be appropriate, but it really depends on your payer. Not every MAC that has an LCD policy allows for this diagnosis. 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. Hydroxychloroquine icd 10 code Coding for Plaquenil Toxicity Observation - CPT®, ICD-10., Correct diagnosis for a Plaquenil exam - American Academy of. Plaquenil 300 mgDoes plaquenil cause hair loss It is the same for ICD-10. Code for Lupus or RA first there are several codes for each disease depending on level of involvement and then put the code for the long term use of the medication, Z79.899. If toxicity from the Plaquenil is noted, then you also put the code down for that from the Drugs and Chemicals table. That would go down third. Z01.00 vs. Z13.5 Medical Billing and Coding Forum - AAPC. ICD-10 Code for Completion of Plaquenil Treatment.. ICD-10-CM Diagnosis Code Z79.899 Other long term.. Hydroxychloroquine Hydroxychloroquine ICD-10-CM Drugs Index The ICD-10-CM Drugs Index is designed to allow medical coders to look up various medical terms and connect them with the appropriate ICD codes. There are 0 terms under the parent term 'Hydroxychloroquine' in the ICD-10-CM Drugs Index. ICD-10 Resources. Download the top 50 rheumatology ICD-10 codes and rheumatology specific superbill to use as quick guides for coding and billing. Note these should not take the place of the official ICD-10 coding manual as there are key guidelines and conventions that may not be included in the crosswalk due to space. The aim of this study was to characterize International Classification of Diseases ICD-9 coding patterns used by ophthalmologists in clinical practice for hydroxychloroquine HCQ retinal is a retrospective cohort study. Patients enrolled.