Adverse effect of tetracyclines, sequela

This code signifies a long-term or residual condition resulting from a past adverse reaction to a tetracycline antibiotic. These sequelae are persistent health problems that manifest after the acute phase of the adverse effect has resolved. Examples include permanent tooth discoloration or chronic photosensitivity.

Apply this code when documenting a patient presenting with a chronic or permanent health issue directly attributable to a previous adverse effect from tetracycline use. This is appropriate for conditions that are no longer acute but represent a lasting consequence of the drug reaction. It should be used in conjunction with a code for the specific sequela.

• Always code the specific sequela first, then append this code to indicate its etiology.
• Ensure documentation clearly links the current condition to a past tetracycline adverse effect.
• Do not use for acute adverse effects; those require codes from the T36.4X1-T36.4X4 series.