R42 is a billable codeused to specify a medical diagnosis of dizziness and giddiness. the code is valid for the year 2020 for the submission of hipaa-covered transactions. the icd-10-cm code r42 might also be used to specify conditions or terms like apoplectic vertigo, cervical vertigo, chronic vertigo, constant vertigo, dissociative neurological symptom disorder co-occurrent with dizziness, dizziness, etc according to icd-10-centimeter guidelines this code should not to be used as a principal diagnosis code when a related definitive diagnosis has been established. Oct 01, 2020 · vertigo of central origin 2016 2017 2018 2019 2020 converted to parent code 2021 billable/specific code h81. 4 is a billable/specific icd-10-cm code that can be used to indicate a diagnosis for reimbursement purposes. the 2021 edition of icd-10-centimeter h81. 4 became effective on october 1, 2020. The following clinical terms are approximate synonyms or lay terms that might be used to identify the correct pe...