ICD-9-CM diagnosis code (retired)
800.23 — Closed fracture of vault of skull with subarachnoid, subdural, and extradural hemorrhage, with moderate [1-24 hours] loss of consciousness
About ICD-9-CM 800.23
800.23 is an ICD-9-CM diagnosis code for closed fracture of vault of skull with subarachnoid, subdural, and extradural hemorrhage, with moderate [1-24 hours] loss of consciousness. ICD-9-CM was retired for U.S. claims on October 1, 2015, when ICD-10-CM took over.
The CMS General Equivalence Mappings translate it to 7 ICD-10-CM codes, such as S02.0XXA (Fracture of vault of skull, initial encounter for closed fracture), S06.4X3A (Epidural hemorrhage with loss of consciousness of 1 hour to 5 hours 59 minutes, initial encounter) and S06.4X4A (Epidural hemorrhage with loss of consciousness of 6 hours to 24 hours, initial encounter). All of these are approximate matches, so review the record to pick the right one. Some mappings are combinations: more than one ICD-10 code is needed to fully express the ICD-9 code.
ICD-10-CM equivalents
- S02.0XXAFracture of vault of skull, initial encounter for closed fractureapproximate · combination (scenario 1, choice 1)
- S06.4X3AEpidural hemorrhage with loss of consciousness of 1 hour to 5 hours 59 minutes, initial encounterapproximate · combination (scenario 1, choice 2)
- S06.4X4AEpidural hemorrhage with loss of consciousness of 6 hours to 24 hours, initial encounterapproximate · combination (scenario 1, choice 2)
- S06.5X3ATraumatic subdural hemorrhage with loss of consciousness of 1 hour to 5 hours 59 minutes, initial encounterapproximate · combination (scenario 1, choice 2)
- S06.5X4ATraumatic subdural hemorrhage with loss of consciousness of 6 hours to 24 hours, initial encounterapproximate · combination (scenario 1, choice 2)
- S06.6X3ATraumatic subarachnoid hemorrhage with loss of consciousness of 1 hour to 5 hours 59 minutes, initial encounterapproximate · combination (scenario 1, choice 2)
- S06.6X4ATraumatic subarachnoid hemorrhage with loss of consciousness of 6 hours to 24 hours, initial encounterapproximate · combination (scenario 1, choice 2)
Common questions about 800.23
GEMs are a translation aid, not a substitute for coding from the record. The 2027 ICD-10 code set has changed since the last GEMs release in 2018. Page updated September 29, 2026.