Adverse effect of other anti-common-cold drugs, sequela

This code signifies a long-term or residual condition resulting from an adverse reaction to a medication primarily used to treat common cold symptoms, excluding cough preparations. This could include persistent organ damage, chronic neurological issues, or other lasting health problems directly attributable to the drug's adverse effect. The sequela indicates that the acute adverse event has resolved, but its lasting impact remains.

Use this code when documenting a patient presenting with a chronic health issue that is a direct consequence of an adverse effect from an "other anti-common-cold drug" experienced in the past. This applies when the original adverse event is no longer active but has left a permanent mark on the patient's health. Examples include chronic kidney disease following an acute kidney injury from a decongestant, or persistent tinnitus after an ototoxic reaction to an antihistamine.

• Always sequence this sequela code after the code for the specific residual condition it caused.
• Ensure documentation clearly links the current chronic condition to a past adverse effect of an anti-common-cold drug.
• Distinguish from acute adverse effects, which would use a different seventh character.