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ICD-10-CM 2027

ICD-10 code for misdirection

H40.83

Aqueous misdirection

Header — needs a more specific code

From the official ICD-10-CM alphabetic index entry “Misdirection, aqueous”. Page updated September 29, 2026.

About coding misdirection

The ICD-10-CM code for misdirection is H40.83 (Aqueous misdirection).

Within H40.8 (other glaucoma), H40.83 is specifically for aqueous misdirection. Related codes cover glaucoma with increased episcleral venous pressure (H40.81), hypersecretion glaucoma (H40.82), Neovascular secondary angle closure glaucoma (H40.84) and other specified glaucoma (H40.89).

To report this condition, pick the subcode that matches the documentation: H40.831 (right eye), H40.832 (left eye), H40.833 (bilateral) and H40.839 (unspecified eye).

It has been part of ICD-10-CM since the code set took effect on October 1, 2015 and hasn't changed since.

Common questions about misdirection ICD-10 codes

What is the ICD-10 code for misdirection?

H40.83 — Aqueous misdirection (a header code; report a more specific subcode).

Is H40.83 billable?

No. H40.83 is a header code. Report one of its more specific subcodes instead.