ICD-10 Code H44.43 – Hypotony of eye due to other ocular disorders (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code H44.43 – Hypotony of eye due to other ocular disorders
What it is
H44.43 identifies abnormally low intraocular pressure caused by another eye disorder. Use it when the hypotony is documented as secondary to an ocular condition, not as an isolated finding.
Clinical signs
Findings may include a persistently soft eye, shallow anterior chamber, or visual changes related to low pressure. Clinical features vary; refer to documentation.
When to use this code
Use this code when the provider states that hypotony is due to a specified ocular disorder, such as after eye disease or structural damage. Code the underlying eye condition separately when documented. If the record only says “low eye pressure” without a cause, check documentation.
Do not use for
Do not use H44.43 for hypotony caused by trauma, surgery, or non-ocular systemic conditions unless the record specifically supports this code. Do not assign it when hypotony is not documented.
Coding tip
Link the hypotony to the documented eye disorder in the record, and capture the underlying diagnosis when available.