Specific code 2015 ICD-9-CM Diagnosis Code 378.31
  • 2015
  • Billable Code
  • ICD-9-CM 378.31 will be replaced by an equivalent ICD-10-CM code (or codes) when the United States transitions from ICD-9-CM to ICD-10-CM on October 1, 2015.
  • ICD-9-CM 378.31 is a billable medical code that can be used to specify a diagnosis on a reimbursement claim.
Disease Synonyms
  • Hypertropia (strabismus, eye condition)
Clinical Information
  • Vertical strabismus in which there is permanent upward deviation of the visual axis of one eye
Applies To
  • Vertical heterotropia (constant) (intermittent)
Convert to ICD-10-CM: 378.31 converts approximately to:
  • 2015 ICD-10-CM H50.21 Vertical strabismus, right eye
  • 2015 ICD-10-CM H50.22 Vertical strabismus, left eye
ICD-9-CM Volume 2 Index entries containing back-references to 378.31:
  • Heterotropia 378.30
    • intermittent 378.20
      • vertical 378.31
    • vertical (constant) (intermittent) 378.31
  • Hypertropia (intermittent) (periodic) 378.31
  • Strabismus (alternating) (congenital) (nonparalytic) 378.9
    • in neuromuscular disorder NEC 378.73
      • intermittent 378.20
        • vertical 378.31
    • vertical (hypertropia) 378.31
ICD-9-CM codes are used in medical billing and coding to describe diseases, injuries, symptoms and conditions. ICD-9-CM 378.31 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.