H40.833 Aqueous misdirection, bilateral

ICD-10-CM Diagnosis Code H40.833: Aqueous misdirection, bilateral

ICD-10-CM code H40.833 represents the diagnosis of bilateral aqueous misdirection, classified as a Disease or Syndrome. It is an active terminology concept that falls under the broader parent category of aqueous misdirection. This specific code is listed in payer policies and coverage databases alongside other specified glaucoma diagnoses. 1 2 3

Plain-language overview

ICD-10-CM code H40.833 identifies a health condition classified as a Disease or Syndrome, specifically denoting aqueous misdirection that is bilateral. 1

What this code represents

The official preferred name for H40.833 is aqueous misdirection, bilateral, and this exact terminology record is currently designated with an active status. 1

Coding details

Within the ICD-10-CM hierarchy, code H40.833 is a narrower concept that falls under the parent concept H40.83, which is the general code for aqueous misdirection. 1

Code H40.833 is situated alongside distinct laterality codes for aqueous misdirection, specifically H40.831 for the right eye and H40.832 for the left eye. 3

Documentation considerations

The terminology record for H40.833 specifies bilateral aqueous misdirection as a Disease or Syndrome, and a separate clinical policy lists this exact diagnosis code alongside other eye conditions. 1 3

Coverage and utilization context

An aqueous shunt clinical policy includes H40.833 within a list of ICD-10-CM diagnosis codes that also features congenital glaucoma and various laterality-specific glaucoma conditions. 3

What the sources add

While the terminology record establishes the official code definition and hierarchy, the clinical policy provides operational context by listing H40.833 among diagnosis codes within an aqueous shunt policy document. 1 3

A federal coverage database search includes H40.833 within a list of other specified glaucoma and eye conditions, whereas the terminology record focuses strictly on its semantic classification. 1 2

Questions to verify

The supplied excerpts do not detail the specific clinical documentation elements required to support the use of code H40.833, indicating a need to verify these requirements elsewhere. 1 3

Sources

1. ICD-10-CM H40.833 terminology record — National Cancer Institute Enterprise Vocabulary Services; accessed 2026-07-27.
2. MCD Search — cms.gov; accessed 2026-07-27.
3. Clinical Policy: Aqueous Shunt — homestatehealth.com; accessed 2026-07-27.