Convert ICD-10-CM T59.91XA to ICD-9-CM

T59.91XA can be converted to ICD-9-CM using the following scenario:
Scenario 1
  • 2015 ICD-9-CM 987.9 Toxic effect of unspecified gas, fume, or vapor
  • With:
  • 2015 ICD-9-CM E869.8 Accidental poisoning by other specified gases and vapors

Note: approximate conversions between ICD-9-CM codes and ICD-10-CM codes may require clinical interpretation in order to determine the most appropriate conversion code(s) for your specific coding situation.

Source: 2021 ICD-10-CM CMS General Equivalence Mappings.