Table 3.

Codes used to evaluate for TKA and hypertrophic scarring

TKA
CPT-27447
Hypertrophic scar formation
ICD-9-D-7014	ICD-10-D-L730	ICD-10-D-L910
ICD-10-D-L905
Miscoded revision TKA
ICD-10-P-0SPC08Z	ICD-10-P-0SPD08Z	ICD-10-P-0SPT0JZ
ICD-10-P-0SPC09Z	ICD-10-P-0SPD09Z	ICD-10-P-0SPT4JZ
ICD-10-P-0SPC0JC	ICD-10-P-0SPD0JC	ICD-10-P-0SPU0JZ
ICD-10-P-0SPC0JZ	ICD-10-P-0SPD0JZ	ICD-10-P-0SPU4JZ
ICD-10-P-0SPC38Z	ICD-10-P-0SPD38Z	ICD-10-P-0SPV0JZ
ICD-10-P-0SPC3JZ	ICD-10-P-0SPD3JZ	ICD-10-P-0SPV4JZ
ICD-10-P-0SPC48Z	ICD-10-P-0SPD48Z	ICD-10-P-0SPW0JZ
ICD-10-P-0SPC4JZ	ICD-10-P-0SPD4JZ	ICD-10-P-0SPW4JZ
Exclusion codes
ICD-9-D-73315  ICD-9-D-73397  ICD-9-D-82100  ICD-9-D-82110  ICD-9-D-82120  ICD-9-D-82123  ICD-9-D-82129  ICD-9-D-82130  ICD-9-D-82132  ICD-9-D-82133  ICD-9-D-82139  ICD-9-D-73316  ICD-9-D-73393  ICD-9-D-82300  ICD-9-D-82302  ICD-9-D-82310  ICD-9-D-82312  ICD-9-D-82380  ICD-9-D-82382  ICD-9-D-82390  ICD-9-D-82392  ICD-9-P-0080	ICD-9-P-0081 ICD-9-P-0082 ICD-9-P-0083 ICD-9-P-0084 ICD-9-P-8155 ICD-9-P-8006 ICD-10-D-M84453A ICD-10-D-M84750A ICD-10-D-M84353A ICD-10-D-S7290XA ICD-10-D-S7290XB ICD-10-D-S7290XC ICD-10-D-S72409A ICD-10-D-S72453A ICD-10-D-S72456A ICD-10-D-S72499A ICD-10-D-S72409B ICD-10-D-S72453B ICD-10-D-M84469A ICD-10-D-M84369A ICD-10-D-S82109A	ICD-10-D-S82101A ICD-10-D-S82831A ICD-10-D-S82102A ICD-10-D-S82832A ICD-10-D-S82109B ICD-10-D-S82109C ICD-10-D-S82101B ICD-10-D-S82831B ICD-10-D-S82102B ICD-10-D-S82832B ICD-10-D-S82201A ICD-10-D-S82401A ICD-10-D-S82202A ICD-10-D-S82402A ICD-10-D-S82201B ICD-10-D-S82201C ICD-10-D-S82401B ICD-10-D-S82202B ICD-10-D-S82402B ICD-10-P-0SPC0JZ ICD-10-P-0SPD0JZ

Excluded patients with TKA due to traumatic or pathologic fracture and revision TKA

TKA total knee arthroplasty, CPT current procedural terminology, ICD-9/ICD-10 International Classification of Diseases, ninth and tenth revision, CMS Centers for Medicare and Medicaid Services

^aICD-10 codes were retrieved via combination mapping from related ICD-9 codes according to CMS guidelines