Adverse effect of antivaric drugs, inc scler agents, sequela

This code signifies a long-term or residual condition resulting from an adverse reaction to medications used to treat varicose veins, including sclerosing agents. These persistent effects could range from chronic skin changes, nerve damage, or persistent pain that developed after the initial adverse event. It indicates that the initial adverse effect has resolved, but left a lasting consequence.

Use this code when documenting a patient presenting with a chronic or permanent complication directly attributable to a past adverse reaction to antivaricose drugs or sclerosing agents. This applies when the acute adverse event has passed, but the patient continues to experience a sequela. Examples include chronic hyperpigmentation, persistent induration, or nerve damage following sclerotherapy.

• Always sequence this sequela code after the code for the specific manifestation of the adverse effect, if applicable and still active.
• Ensure documentation clearly links the current chronic condition to a past adverse effect of antivaricose drugs or sclerosing agents.
• This code requires a 7th character 'S' for sequela, indicating the lasting nature of the condition.