ICD-10-CM > M00-M99 > M05-M14 > M12 > M12.4 > M12.45 M12.45 Intermittent hydrarthrosis, hip Non-Billable/Non-Specific Codes M12.451Intermittent hydrarthrosis, right hipM12.452Intermittent hydrarthrosis, left hipM12.459Intermittent hydrarthrosis, unspecified hip