icd code impaired mobility
2012 ICD-9-CM Diagnosis Code 385.21. Impaired mobility of malleus. 1  Short description: Ankylosis malleus. 2  ICD-9-CM 385.21 is a billable medical code that can be used to indicate a diagnosis on a reimbursement claim, however, 385.21 should only be used for claims with a date of service on or before September 30, 2015. 3  You are viewing the 2012 version of ICD-9-CM 385.21. 4  More recent ...