Adverse effect of nonsteroidal anti-inflammatory drugs, init

This code signifies an undesirable or harmful reaction experienced by a patient due to the proper administration of an NSAID other than aspirin, propionic acid derivatives, or other specified NSAIDs. These adverse effects can range from mild gastrointestinal upset to more severe systemic reactions, occurring when the drug was taken as prescribed.

Apply this code when a patient presents for initial treatment of an adverse event caused by an NSAID not specifically classified elsewhere, such as diclofenac, indomethacin, or meloxicam, when taken correctly. This includes situations where the patient is experiencing symptoms like new-onset ulcers, kidney dysfunction, or allergic reactions directly attributable to the NSAID.

• Always use a secondary code to identify the specific adverse effect (e.g., K25.x for gastric ulcer).
• Ensure the documentation clearly states the reaction was an adverse effect, not poisoning or underdosing.
• Verify the NSAID involved is not one with a more specific T39 subcategory.