Poisoning by aminoglycosides, intentional self-harm, sequela

This code signifies a long-term complication or residual effect stemming from an intentional self-poisoning event involving an aminoglycoside antibiotic. These sequelae can manifest as persistent organ damage, such as ototoxicity (hearing loss or balance issues) or nephrotoxicity (kidney impairment), that occurred as a direct result of the overdose. The original acute poisoning event has resolved, but its lasting consequences are now being addressed.

Use this code when documenting the treatment of chronic or permanent conditions directly attributable to a past intentional self-harm poisoning by an aminoglycoside. This applies to follow-up encounters where the patient is being managed for the lingering effects, such as ongoing dialysis for aminoglycoside-induced renal failure or rehabilitation for profound hearing loss. Do not use for the initial acute poisoning episode.

• Always sequence this sequela code after the code describing the specific nature of the sequela (e.g., H90.5 for sensorineural hearing loss).
• Ensure documentation clearly links the current condition to the past aminoglycoside self-poisoning.
• Verify the intent was explicitly self-harm; differentiate from accidental or assault poisonings.