H57.05
Tonic pupil
Clinical Information
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A pupillary abnormality characterized by a poor pupillary light reaction, reduced accommodation, iris sector palsies, an enhanced pupillary response to near effort that results in a prolonged, “tonic” constriction, and slow pupillary redilation. This condition is associated with injury to the postganglionic parasympathetic innervation to the pupil. from miller et al., clinical neuro-ophthalmology, 4th ed, pp492-500)
Details
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H57.05 should not be used for reimbursement purposes as there are multiple codes below it that contain a greater level of detail.
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The 2023 edition of ICD-10-CM H57.05 became effective on October 1, 2022.
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This is the American ICD-10-CM version of H57.05 – other international versions of ICD-10 H57.05 may differ.