H74: Other disorders of middle ear mastoid
H74.2: Discontinuity and dislocation of ear ossicles
H74.20: Discontinuity and dislocation of ear ossicles, unspecified ear
H74.21: Discontinuity and dislocation of right ear ossicles
H74.22: Discontinuity and dislocation of left ear ossicles
H74.23: Discontinuity and dislocation of ear ossicles, bilateral

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