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ICD-10-CM Codes S00-T88 S60-S69 S66

ICD-10-CM Diagnosis Code S66

Injury of muscle, fascia and tendon at wrist and hand level

7th Chr Note S66:

  • The appropriate 7th character is to be added to each code from category S66

Code Also for S66:

  • any associated open wound (S61.-)

Excludes-2 for S66:

  • sprain of joints and ligaments of wrist and hand (S63.-)

Codes Hierarchy:

    • S66  Injury of muscle, fascia and tendon at wrist and hand level
      • S66.0 Injury of long flexor muscle, fascia and tendon of thumb at wrist and hand level
        • S66.00 Unspecified injury of long flexor muscle, fascia and tendon of thumb at wrist and hand level
          • S66.001  Unspecified injury of long flexor muscle, fascia and tendon of right thumb at wrist and hand level
          • S66.002  Unspecified injury of long flexor muscle, fascia and tendon of left thumb at wrist and hand level
          • S66.009  Unspecified injury of long flexor muscle, fascia and tendon of unspecified thumb at wrist and hand level
        • S66.01 Strain of long flexor muscle, fascia and tendon of thumb at wrist and hand level
          • S66.011  Strain of long flexor muscle, fascia and tendon of right thumb at wrist and hand level
          • S66.012  Strain of long flexor muscle, fascia and tendon of left thumb at wrist and hand level
          • S66.019  Strain of long flexor muscle, fascia and tendon of unspecified thumb at wrist and hand level
        • S66.02 Laceration of long flexor muscle, fascia and tendon of thumb at wrist and hand level
          • S66.021  Laceration of long flexor muscle, fascia and tendon of right thumb at wrist and hand level
          • S66.022  Laceration of long flexor muscle, fascia and tendon of left thumb at wrist and hand level
          • S66.029  Laceration of long flexor muscle, fascia and tendon of unspecified thumb at wrist and hand level
        • S66.09 Other specified injury of long flexor muscle, fascia and tendon of thumb at wrist and hand level
          • S66.091  Other specified injury of long flexor muscle, fascia and tendon of right thumb at wrist and hand level
          • S66.092  Other specified injury of long flexor muscle, fascia and tendon of left thumb at wrist and hand level
          • S66.099  Other specified injury of long flexor muscle, fascia and tendon of unspecified thumb at wrist and hand level
      • S66.1 Injury of flexor muscle, fascia and tendon of other and unspecified finger at wrist and hand level
        • S66.10 Unspecified injury of flexor muscle, fascia and tendon of other and unspecified finger at wrist and hand level
          • S66.100  Unspecified injury of flexor muscle, fascia and tendon of right index finger at wrist and hand level
          • S66.101  Unspecified injury of flexor muscle, fascia and tendon of left index finger at wrist and hand level
          • S66.102  Unspecified injury of flexor muscle, fascia and tendon of right middle finger at wrist and hand level
          • S66.103  Unspecified injury of flexor muscle, fascia and tendon of left middle finger at wrist and hand level
          • S66.104  Unspecified injury of flexor muscle, fascia and tendon of right ring finger at wrist and hand level
          • S66.105  Unspecified injury of flexor muscle, fascia and tendon of left ring finger at wrist and hand level
          • S66.106  Unspecified injury of flexor muscle, fascia and tendon of right little finger at wrist and hand level
          • S66.107  Unspecified injury of flexor muscle, fascia and tendon of left little finger at wrist and hand level
          • S66.108  Unspecified injury of flexor muscle, fascia and tendon of other finger at wrist and hand level
          • S66.109  Unspecified injury of flexor muscle, fascia and tendon of unspecified finger at wrist and hand level
        • S66.11 Strain of flexor muscle, fascia and tendon of other and unspecified finger at wrist and hand level
          • S66.110  Strain of flexor muscle, fascia and tendon of right index finger at wrist and hand level
          • S66.111  Strain of flexor muscle, fascia and tendon of left index finger at wrist and hand level
          • S66.112  Strain of flexor muscle, fascia and tendon of right middle finger at wrist and hand level
          • S66.113  Strain of flexor muscle, fascia and tendon of left middle finger at wrist and hand level
          • S66.114  Strain of flexor muscle, fascia and tendon of right ring finger at wrist and hand level
          • S66.115  Strain of flexor muscle, fascia and tendon of left ring finger at wrist and hand level
          • S66.116  Strain of flexor muscle, fascia and tendon of right little finger at wrist and hand level
          • S66.117  Strain of flexor muscle, fascia and tendon of left little finger at wrist and hand level
          • S66.118  Strain of flexor muscle, fascia and tendon of other finger at wrist and hand level
          • S66.119  Strain of flexor muscle, fascia and tendon of unspecified finger at wrist and hand level
        • S66.12 Laceration of flexor muscle, fascia and tendon of other and unspecified finger at wrist and hand level
          • S66.120  Laceration of flexor muscle, fascia and tendon of right index finger at wrist and hand level
          • S66.121  Laceration of flexor muscle, fascia and tendon of left index finger at wrist and hand level
          • S66.122  Laceration of flexor muscle, fascia and tendon of right middle finger at wrist and hand level
          • S66.123  Laceration of flexor muscle, fascia and tendon of left middle finger at wrist and hand level
          • S66.124  Laceration of flexor muscle, fascia and tendon of right ring finger at wrist and hand level
          • S66.125  Laceration of flexor muscle, fascia and tendon of left ring finger at wrist and hand level
          • S66.126  Laceration of flexor muscle, fascia and tendon of right little finger at wrist and hand level
          • S66.127  Laceration of flexor muscle, fascia and tendon of left little finger at wrist and hand level
          • S66.128  Laceration of flexor muscle, fascia and tendon of other finger at wrist and hand level
          • S66.129  Laceration of flexor muscle, fascia and tendon of unspecified finger at wrist and hand level
        • S66.19 Other injury of flexor muscle, fascia and tendon of other and unspecified finger at wrist and hand level
          • S66.190  Other injury of flexor muscle, fascia and tendon of right index finger at wrist and hand level
          • S66.191  Other injury of flexor muscle, fascia and tendon of left index finger at wrist and hand level
          • S66.192  Other injury of flexor muscle, fascia and tendon of right middle finger at wrist and hand level
          • S66.193  Other injury of flexor muscle, fascia and tendon of left middle finger at wrist and hand level
          • S66.194  Other injury of flexor muscle, fascia and tendon of right ring finger at wrist and hand level
          • S66.195  Other injury of flexor muscle, fascia and tendon of left ring finger at wrist and hand level
          • S66.196  Other injury of flexor muscle, fascia and tendon of right little finger at wrist and hand level
          • S66.197  Other injury of flexor muscle, fascia and tendon of left little finger at wrist and hand level
          • S66.198  Other injury of flexor muscle, fascia and tendon of other finger at wrist and hand level
          • S66.199  Other injury of flexor muscle, fascia and tendon of unspecified finger at wrist and hand level
      • S66.2 Injury of extensor muscle, fascia and tendon of thumb at wrist and hand level
        • S66.20 Unspecified injury of extensor muscle, fascia and tendon of thumb at wrist and hand level
          • S66.201  Unspecified injury of extensor muscle, fascia and tendon of right thumb at wrist and hand level
          • S66.202  Unspecified injury of extensor muscle, fascia and tendon of left thumb at wrist and hand level
          • S66.209  Unspecified injury of extensor muscle, fascia and tendon of unspecified thumb at wrist and hand level
        • S66.21 Strain of extensor muscle, fascia and tendon of thumb at wrist and hand level
          • S66.211  Strain of extensor muscle, fascia and tendon of right thumb at wrist and hand level
          • S66.212  Strain of extensor muscle, fascia and tendon of left thumb at wrist and hand level
          • S66.219  Strain of extensor muscle, fascia and tendon of unspecified thumb at wrist and hand level
        • S66.22 Laceration of extensor muscle, fascia and tendon of thumb at wrist and hand level
          • S66.221  Laceration of extensor muscle, fascia and tendon of right thumb at wrist and hand level
          • S66.222  Laceration of extensor muscle, fascia and tendon of left thumb at wrist and hand level
          • S66.229  Laceration of extensor muscle, fascia and tendon of unspecified thumb at wrist and hand level
        • S66.29 Other specified injury of extensor muscle, fascia and tendon of thumb at wrist and hand level
          • S66.291  Other specified injury of extensor muscle, fascia and tendon of right thumb at wrist and hand level
          • S66.292  Other specified injury of extensor muscle, fascia and tendon of left thumb at wrist and hand level
          • S66.299  Other specified injury of extensor muscle, fascia and tendon of unspecified thumb at wrist and hand level
      • S66.3 Injury of extensor muscle, fascia and tendon of other and unspecified finger at wrist and hand level
        • S66.30 Unspecified injury of extensor muscle, fascia and tendon of other and unspecified finger at wrist and hand level
          • S66.300  Unspecified injury of extensor muscle, fascia and tendon of right index finger at wrist and hand level
          • S66.301  Unspecified injury of extensor muscle, fascia and tendon of left index finger at wrist and hand level
          • S66.302  Unspecified injury of extensor muscle, fascia and tendon of right middle finger at wrist and hand level
          • S66.303  Unspecified injury of extensor muscle, fascia and tendon of left middle finger at wrist and hand level
          • S66.304  Unspecified injury of extensor muscle, fascia and tendon of right ring finger at wrist and hand level
          • S66.305  Unspecified injury of extensor muscle, fascia and tendon of left ring finger at wrist and hand level
          • S66.306  Unspecified injury of extensor muscle, fascia and tendon of right little finger at wrist and hand level
          • S66.307  Unspecified injury of extensor muscle, fascia and tendon of left little finger at wrist and hand level
          • S66.308  Unspecified injury of extensor muscle, fascia and tendon of other finger at wrist and hand level
          • S66.309  Unspecified injury of extensor muscle, fascia and tendon of unspecified finger at wrist and hand level
        • S66.31 Strain of extensor muscle, fascia and tendon of other and unspecified finger at wrist and hand level
          • S66.310  Strain of extensor muscle, fascia and tendon of right index finger at wrist and hand level
          • S66.311  Strain of extensor muscle, fascia and tendon of left index finger at wrist and hand level
          • S66.312  Strain of extensor muscle, fascia and tendon of right middle finger at wrist and hand level
          • S66.313  Strain of extensor muscle, fascia and tendon of left middle finger at wrist and hand level
          • S66.314  Strain of extensor muscle, fascia and tendon of right ring finger at wrist and hand level
          • S66.315  Strain of extensor muscle, fascia and tendon of left ring finger at wrist and hand level
          • S66.316  Strain of extensor muscle, fascia and tendon of right little finger at wrist and hand level
          • S66.317  Strain of extensor muscle, fascia and tendon of left little finger at wrist and hand level
          • S66.318  Strain of extensor muscle, fascia and tendon of other finger at wrist and hand level
          • S66.319  Strain of extensor muscle, fascia and tendon of unspecified finger at wrist and hand level
        • S66.32 Laceration of extensor muscle, fascia and tendon of other and unspecified finger at wrist and hand level
          • S66.320  Laceration of extensor muscle, fascia and tendon of right index finger at wrist and hand level
          • S66.321  Laceration of extensor muscle, fascia and tendon of left index finger at wrist and hand level
          • S66.322  Laceration of extensor muscle, fascia and tendon of right middle finger at wrist and hand level
          • S66.323  Laceration of extensor muscle, fascia and tendon of left middle finger at wrist and hand level
          • S66.324  Laceration of extensor muscle, fascia and tendon of right ring finger at wrist and hand level
          • S66.325  Laceration of extensor muscle, fascia and tendon of left ring finger at wrist and hand level
          • S66.326  Laceration of extensor muscle, fascia and tendon of right little finger at wrist and hand level
          • S66.327  Laceration of extensor muscle, fascia and tendon of left little finger at wrist and hand level
          • S66.328  Laceration of extensor muscle, fascia and tendon of other finger at wrist and hand level
          • S66.329  Laceration of extensor muscle, fascia and tendon of unspecified finger at wrist and hand level
        • S66.39 Other injury of extensor muscle, fascia and tendon of other and unspecified finger at wrist and hand level
          • S66.390  Other injury of extensor muscle, fascia and tendon of right index finger at wrist and hand level
          • S66.391  Other injury of extensor muscle, fascia and tendon of left index finger at wrist and hand level
          • S66.392  Other injury of extensor muscle, fascia and tendon of right middle finger at wrist and hand level
          • S66.393  Other injury of extensor muscle, fascia and tendon of left middle finger at wrist and hand level
          • S66.394  Other injury of extensor muscle, fascia and tendon of right ring finger at wrist and hand level
          • S66.395  Other injury of extensor muscle, fascia and tendon of left ring finger at wrist and hand level
          • S66.396  Other injury of extensor muscle, fascia and tendon of right little finger at wrist and hand level
          • S66.397  Other injury of extensor muscle, fascia and tendon of left little finger at wrist and hand level
          • S66.398  Other injury of extensor muscle, fascia and tendon of other finger at wrist and hand level
          • S66.399  Other injury of extensor muscle, fascia and tendon of unspecified finger at wrist and hand level
      • S66.4 Injury of intrinsic muscle, fascia and tendon of thumb at wrist and hand level
        • S66.40 Unspecified injury of intrinsic muscle, fascia and tendon of thumb at wrist and hand level
          • S66.401  Unspecified injury of intrinsic muscle, fascia and tendon of right thumb at wrist and hand level
          • S66.402  Unspecified injury of intrinsic muscle, fascia and tendon of left thumb at wrist and hand level
          • S66.409  Unspecified injury of intrinsic muscle, fascia and tendon of unspecified thumb at wrist and hand level
        • S66.41 Strain of intrinsic muscle, fascia and tendon of thumb at wrist and hand level
          • S66.411  Strain of intrinsic muscle, fascia and tendon of right thumb at wrist and hand level
          • S66.412  Strain of intrinsic muscle, fascia and tendon of left thumb at wrist and hand level
          • S66.419  Strain of intrinsic muscle, fascia and tendon of unspecified thumb at wrist and hand level
        • S66.42 Laceration of intrinsic muscle, fascia and tendon of thumb at wrist and hand level
          • S66.421  Laceration of intrinsic muscle, fascia and tendon of right thumb at wrist and hand level
          • S66.422  Laceration of intrinsic muscle, fascia and tendon of left thumb at wrist and hand level
          • S66.429  Laceration of intrinsic muscle, fascia and tendon of unspecified thumb at wrist and hand level
        • S66.49 Other specified injury of intrinsic muscle, fascia and tendon of thumb at wrist and hand level
          • S66.491  Other specified injury of intrinsic muscle, fascia and tendon of right thumb at wrist and hand level
          • S66.492  Other specified injury of intrinsic muscle, fascia and tendon of left thumb at wrist and hand level
          • S66.499  Other specified injury of intrinsic muscle, fascia and tendon of unspecified thumb at wrist and hand level
      • S66.5 Injury of intrinsic muscle, fascia and tendon of other and unspecified finger at wrist and hand level
        • S66.50 Unspecified injury of intrinsic muscle, fascia and tendon of other and unspecified finger at wrist and hand level
          • S66.500  Unspecified injury of intrinsic muscle, fascia and tendon of right index finger at wrist and hand level
          • S66.501  Unspecified injury of intrinsic muscle, fascia and tendon of left index finger at wrist and hand level
          • S66.502  Unspecified injury of intrinsic muscle, fascia and tendon of right middle finger at wrist and hand level
          • S66.503  Unspecified injury of intrinsic muscle, fascia and tendon of left middle finger at wrist and hand level
          • S66.504  Unspecified injury of intrinsic muscle, fascia and tendon of right ring finger at wrist and hand level
          • S66.505  Unspecified injury of intrinsic muscle, fascia and tendon of left ring finger at wrist and hand level
          • S66.506  Unspecified injury of intrinsic muscle, fascia and tendon of right little finger at wrist and hand level
          • S66.507  Unspecified injury of intrinsic muscle, fascia and tendon of left little finger at wrist and hand level
          • S66.508  Unspecified injury of intrinsic muscle, fascia and tendon of other finger at wrist and hand level
          • S66.509  Unspecified injury of intrinsic muscle, fascia and tendon of unspecified finger at wrist and hand level
        • S66.51 Strain of intrinsic muscle, fascia and tendon of other and unspecified finger at wrist and hand level
          • S66.510  Strain of intrinsic muscle, fascia and tendon of right index finger at wrist and hand level
          • S66.511  Strain of intrinsic muscle, fascia and tendon of left index finger at wrist and hand level
          • S66.512  Strain of intrinsic muscle, fascia and tendon of right middle finger at wrist and hand level
          • S66.513  Strain of intrinsic muscle, fascia and tendon of left middle finger at wrist and hand level
          • S66.514  Strain of intrinsic muscle, fascia and tendon of right ring finger at wrist and hand level
          • S66.515  Strain of intrinsic muscle, fascia and tendon of left ring finger at wrist and hand level
          • S66.516  Strain of intrinsic muscle, fascia and tendon of right little finger at wrist and hand level
          • S66.517  Strain of intrinsic muscle, fascia and tendon of left little finger at wrist and hand level
          • S66.518  Strain of intrinsic muscle, fascia and tendon of other finger at wrist and hand level
          • S66.519  Strain of intrinsic muscle, fascia and tendon of unspecified finger at wrist and hand level
        • S66.52 Laceration of intrinsic muscle, fascia and tendon of other and unspecified finger at wrist and hand level
          • S66.520  Laceration of intrinsic muscle, fascia and tendon of right index finger at wrist and hand level
          • S66.521  Laceration of intrinsic muscle, fascia and tendon of left index finger at wrist and hand level
          • S66.522  Laceration of intrinsic muscle, fascia and tendon of right middle finger at wrist and hand level
          • S66.523  Laceration of intrinsic muscle, fascia and tendon of left middle finger at wrist and hand level
          • S66.524  Laceration of intrinsic muscle, fascia and tendon of right ring finger at wrist and hand level
          • S66.525  Laceration of intrinsic muscle, fascia and tendon of left ring finger at wrist and hand level
          • S66.526  Laceration of intrinsic muscle, fascia and tendon of right little finger at wrist and hand level
          • S66.527  Laceration of intrinsic muscle, fascia and tendon of left little finger at wrist and hand level
          • S66.528  Laceration of intrinsic muscle, fascia and tendon of other finger at wrist and hand level
          • S66.529  Laceration of intrinsic muscle, fascia and tendon of unspecified finger at wrist and hand level
        • S66.59 Other injury of intrinsic muscle, fascia and tendon of other and unspecified finger at wrist and hand level
          • S66.590  Other injury of intrinsic muscle, fascia and tendon of right index finger at wrist and hand level
          • S66.591  Other injury of intrinsic muscle, fascia and tendon of left index finger at wrist and hand level
          • S66.592  Other injury of intrinsic muscle, fascia and tendon of right middle finger at wrist and hand level
          • S66.593  Other injury of intrinsic muscle, fascia and tendon of left middle finger at wrist and hand level
          • S66.594  Other injury of intrinsic muscle, fascia and tendon of right ring finger at wrist and hand level
          • S66.595  Other injury of intrinsic muscle, fascia and tendon of left ring finger at wrist and hand level
          • S66.596  Other injury of intrinsic muscle, fascia and tendon of right little finger at wrist and hand level
          • S66.597  Other injury of intrinsic muscle, fascia and tendon of left little finger at wrist and hand level
          • S66.598  Other injury of intrinsic muscle, fascia and tendon of other finger at wrist and hand level
          • S66.599  Other injury of intrinsic muscle, fascia and tendon of unspecified finger at wrist and hand level
      • S66.8 Injury of other specified muscles, fascia and tendons at wrist and hand level
        • S66.80 Unspecified injury of other specified muscles, fascia and tendons at wrist and hand level
          • S66.801  Unspecified injury of other specified muscles, fascia and tendons at wrist and hand level, right hand
          • S66.802  Unspecified injury of other specified muscles, fascia and tendons at wrist and hand level, left hand
          • S66.809  Unspecified injury of other specified muscles, fascia and tendons at wrist and hand level, unspecified hand
        • S66.81 Strain of other specified muscles, fascia and tendons at wrist and hand level
          • S66.811  Strain of other specified muscles, fascia and tendons at wrist and hand level, right hand
          • S66.812  Strain of other specified muscles, fascia and tendons at wrist and hand level, left hand
          • S66.819  Strain of other specified muscles, fascia and tendons at wrist and hand level, unspecified hand
        • S66.82 Laceration of other specified muscles, fascia and tendons at wrist and hand level
          • S66.821  Laceration of other specified muscles, fascia and tendons at wrist and hand level, right hand
          • S66.822  Laceration of other specified muscles, fascia and tendons at wrist and hand level, left hand
          • S66.829  Laceration of other specified muscles, fascia and tendons at wrist and hand level, unspecified hand
        • S66.89 Other injury of other specified muscles, fascia and tendons at wrist and hand level
          • S66.891  Other injury of other specified muscles, fascia and tendons at wrist and hand level, right hand
          • S66.892  Other injury of other specified muscles, fascia and tendons at wrist and hand level, left hand
          • S66.899  Other injury of other specified muscles, fascia and tendons at wrist and hand level, unspecified hand
      • S66.9 Injury of unspecified muscle, fascia and tendon at wrist and hand level
        • S66.90 Unspecified injury of unspecified muscle, fascia and tendon at wrist and hand level
          • S66.901  Unspecified injury of unspecified muscle, fascia and tendon at wrist and hand level, right hand
          • S66.902  Unspecified injury of unspecified muscle, fascia and tendon at wrist and hand level, left hand
          • S66.909  Unspecified injury of unspecified muscle, fascia and tendon at wrist and hand level, unspecified hand
        • S66.91 Strain of unspecified muscle, fascia and tendon at wrist and hand level
          • S66.911  Strain of unspecified muscle, fascia and tendon at wrist and hand level, right hand
          • S66.912  Strain of unspecified muscle, fascia and tendon at wrist and hand level, left hand
          • S66.919  Strain of unspecified muscle, fascia and tendon at wrist and hand level, unspecified hand
        • S66.92 Laceration of unspecified muscle, fascia and tendon at wrist and hand level
          • S66.921  Laceration of unspecified muscle, fascia and tendon at wrist and hand level, right hand
          • S66.922  Laceration of unspecified muscle, fascia and tendon at wrist and hand level, left hand
          • S66.929  Laceration of unspecified muscle, fascia and tendon at wrist and hand level, unspecified hand
        • S66.99 Other injury of unspecified muscle, fascia and tendon at wrist and hand level
          • S66.991  Other injury of unspecified muscle, fascia and tendon at wrist and hand level, right hand
          • S66.992  Other injury of unspecified muscle, fascia and tendon at wrist and hand level, left hand
          • S66.999  Other injury of unspecified muscle, fascia and tendon at wrist and hand level, unspecified hand