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

This code signifies a long-term or residual condition resulting from a past adverse reaction to antacids or other medications that reduce gastric acid secretion. This includes persistent symptoms or complications that arose after the initial acute adverse effect of such drugs has resolved.

Apply this code when documenting a patient presenting with a chronic or lasting health problem directly attributable to a previous adverse effect from drugs like H2 blockers, proton pump inhibitors, or other antacids. This would be used for conditions like chronic kidney disease secondary to long-term PPI use, or persistent electrolyte imbalances following an antacid overdose, where the acute event is no longer active.

• Always sequence this code after the code for the specific sequela or chronic condition being treated.
• Ensure documentation clearly links the current condition to a past adverse effect of an antacid or anti-gastric-secretion drug.
• Distinguish from acute adverse effects, which would use a different 7th character.