Adverse effect of antirheumatics, NEC, sequela

This code signifies a long-term or residual condition resulting from a past adverse reaction to antirheumatic medications, excluding those specified elsewhere. It indicates that the patient is experiencing a lasting health problem directly attributable to a previous unwanted effect of these drugs. This could include chronic organ damage, persistent neurological deficits, or other enduring sequelae.

Use this code when documenting a patient presenting with a chronic or permanent health issue that is a direct consequence of an adverse effect from an antirheumatic medication experienced in the past. This applies when the acute adverse event has resolved, but its lasting impact remains. Examples include chronic kidney disease secondary to NSAID nephrotoxicity or persistent liver damage from methotrexate.

• Always sequence this code after the code for the specific sequela (e.g., chronic kidney disease).
• Ensure documentation clearly links the current chronic condition to a past adverse effect of an antirheumatic.
• Do not use for acute adverse effects; those require codes from the T36-T50 range without the "S" seventh character.