Poisoning by caffeine, undetermined, subsequent encounter

This code signifies a poisoning event caused by caffeine where the intent (accidental, intentional self-harm, assault) cannot be determined. It is used when the patient is receiving follow-up care for the initial caffeine poisoning, such as monitoring for lingering effects or managing ongoing symptoms.

Apply this code for patients presenting for subsequent treatment or evaluation of caffeine toxicity when the circumstances surrounding the ingestion are unclear. This includes scenarios like a patient returning to the emergency department days after an initial caffeine overdose, or a follow-up visit with their primary care physician to assess recovery.

• Always assign a T-code for poisoning first, followed by codes for any associated manifestations.
• The 7th character 'D' indicates a subsequent encounter, meaning the patient is receiving routine care during the healing or recovery phase.
• Ensure documentation clearly supports the "undetermined" intent for caffeine poisoning.