Poisoning by chloramphenicol group, undetermined, subs

This code signifies a poisoning event involving a chloramphenicol-based antibiotic where the intent (e.g., accidental, intentional self-harm, assault) cannot be determined. The patient is receiving follow-up care for the sequelae or ongoing treatment related to this poisoning.

This code is appropriate for encounters where a patient is being treated for the lingering effects or complications of an indeterminate chloramphenicol poisoning. It should be used after the initial acute phase of treatment has concluded. Examples include managing bone marrow suppression or optic neuritis resulting from the poisoning.

• Requires an additional code to specify the specific manifestation of the poisoning (e.g., aplastic anemia, optic neuropathy).
• The "D" seventh character indicates a subsequent encounter for care after the initial treatment.
• Do not use for initial acute poisoning treatment; refer to codes with "A" for initial encounter.