Underdosing of antacids and anti-gstrc-sec drugs, sequela

This code indicates a long-term consequence or complication arising from the patient's insufficient intake or administration of antacids or other medications designed to reduce gastric acid secretion. This underdosing has led to a persistent health problem that is now being addressed.

Use this code when documenting a chronic condition or residual effect directly attributable to a past period of inadequate dosing of medications like H2 blockers, proton pump inhibitors, or other antacids. This applies when the underdosing itself is no longer occurring, but its lasting impact is the focus of the encounter.

• Assign this code as a secondary diagnosis, following the code for the specific sequela (e.g., chronic gastritis, esophageal stricture).
• Ensure documentation clearly links the current condition to the historical underdosing of antacid/anti-gastric-secretion drugs.
• Do not use this code for acute underdosing events or when the underdosing is still actively occurring; use the acute underdosing code for those scenarios.