Specific code 2015 ICD-9-CM Diagnosis Code 993.9
Unspecified effect of air pressure
  • 2015
  • Billable Thru Sept 30/2015
  • Non-Billable On/After Oct 1/2015

  • ICD-9-CM 993.9 is a billable medical code that can be used to indicate a diagnosis on a reimbursement claim, however, 993.9 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: 993.9 converts approximately to:
  • 2015/16 ICD-10-CM T70.9XXA Effect of air pressure and water pressure, unspecified, initial encounter
Approximate Synonyms
  • Effects of air pressure
ICD-9-CM Volume 2 Index entries containing back-references to 993.9:
  • Effect, adverse NEC
    • atmospheric pressure 993.9
      • due to explosion 993.4
      • high 993.3
      • low - see Effect, adverse, high altitude
      • specified effect NEC 993.8
ICD-9-CM codes are used in medical billing and coding to describe diseases, injuries, symptoms and conditions. ICD-9-CM 993.9 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.