Adverse effect of antacids and anti-gstrc-sec drugs, subs

This code signifies a patient experiencing an unintended and undesirable reaction to antacids or other medications that reduce gastric acid secretion, such as proton pump inhibitors or H2 blockers. The adverse effect is being managed during a follow-up visit after the initial treatment for the reaction.

Apply this code when a patient presents for ongoing care related to a previously documented adverse effect from antacids or anti-gastric-secretion drugs. Examples include follow-up for persistent diarrhea, electrolyte imbalance, or kidney issues attributed to these medications. This code is appropriate for subsequent encounters after the initial diagnosis and treatment of the adverse reaction.

• Always sequence this code after the code(s) for the specific manifestation of the adverse effect.
• Ensure documentation clearly links the adverse effect to the antacid or anti-gastric-secretion drug and indicates a subsequent encounter.
• Distinguish from poisoning (T36-T50) which implies an overdose or wrong substance administered.