Specific code 2015 ICD-9-CM Diagnosis Code 379.46
Tonic pupillary reaction
  • 2015
  • Billable Thru Sept 30/2015
  • Non-Billable On/After Oct 1/2015

  • ICD-9-CM 379.46 is a billable medical code that can be used to indicate a diagnosis on a reimbursement claim, however, 379.46 should only be used for claims with a date of service on or before September 30, 2015. For claims with a date of service on or after October 1, 2015, use an equivalent ICD-10-CM code (or codes).
Convert to ICD-10-CM: 379.46 converts approximately to:
  • 2015/16 ICD-10-CM H57.059 Tonic pupil, unspecified eye
Approximate Synonyms
  • Bilat tonic pupil
  • Bilateral tonic pupillary reaction
  • L tonic pupil
  • Left tonic pupil
  • Left tonic pupillary reaction
  • R tonic pupil
  • Right tonic pupil
  • Right tonic pupillary reaction
  • Tonic pupil
  • Tonic pupil, both eyes
Clinical Information
  • 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)
Applies To
  • Adie's pupil or syndrome
ICD-9-CM Volume 2 Index entries containing back-references to 379.46:
  • Adie (-Holmes) syndrome (tonic pupillary reaction) 379.46
  • Myotonic pupil 379.46
  • Pupillotonia 379.46
    • pseudotabetic 379.46
  • Reaction
    • pupillary (myotonic) (tonic) 379.46
  • Saenger's syndrome 379.46
  • Syndrome - see also Disease
    • Adie (-Holmes) (pupil) 379.46
    • Holmes-Adie 379.46
    • Markus-Adie 379.46
    • Saenger's 379.46
  • Tonic pupil 379.46
ICD-9-CM codes are used in medical billing and coding to describe diseases, injuries, symptoms and conditions. ICD-9-CM 379.46 is one of thousands of ICD-9-CM codes used in healthcare. Although ICD-9-CM and CPT codes are largely numeric, they differ in that CPT codes describe medical procedures and services. Can't find a code? Start at the root of ICD-9-CM, check the 2015 ICD-9-CM Index or use the search engine at the top of this page to lookup any code.