ICD-10-CM S56: Injury of muscle, fascia and tendon at forearm level

ICD-10-CM Diagnosis Code (2025)

Official Description for S56

Injury of muscle, fascia and tendon at forearm level

Coding Notes & Guidelines for S56

Excludes2: Not Included Here
  • injury of muscle, fascia and tendon at or below wrist (S66.-)
  • sprain of joints and ligaments of elbow (S53.4-)
Code Also

any associated open wound (S51.-)

7th Character Guidance

The appropriate 7th character is to be added to each code from category S56

7th Character Definitions
  • A: initial encounter
  • D: subsequent encounter
  • S: sequela

Child Codes (More Specific Codes for S56):

S56.0 - Injury of flexor muscle, fascia and tendon of thumb at forearm level S56.00 - Unspecified injury of flexor muscle, fascia and tendon of thumb at forearm level S56.001 - Unspecified injury of flexor muscle, fascia and tendon of right thumb at forearm level S56.002 - Unspecified injury of flexor muscle, fascia and tendon of left thumb at forearm level S56.009 - Unspecified injury of flexor muscle, fascia and tendon of unspecified thumb at forearm level S56.01 - Strain of flexor muscle, fascia and tendon of thumb at forearm level S56.011 - Strain of flexor muscle, fascia and tendon of right thumb at forearm level S56.012 - Strain of flexor muscle, fascia and tendon of left thumb at forearm level S56.019 - Strain of flexor muscle, fascia and tendon of unspecified thumb at forearm level S56.02 - Laceration of flexor muscle, fascia and tendon of thumb at forearm level S56.021 - Laceration of flexor muscle, fascia and tendon of right thumb at forearm level S56.022 - Laceration of flexor muscle, fascia and tendon of left thumb at forearm level S56.029 - Laceration of flexor muscle, fascia and tendon of unspecified thumb at forearm level S56.09 - Other injury of flexor muscle, fascia and tendon of thumb at forearm level S56.091 - Other injury of flexor muscle, fascia and tendon of right thumb at forearm level S56.092 - Other injury of flexor muscle, fascia and tendon of left thumb at forearm level S56.099 - Other injury of flexor muscle, fascia and tendon of unspecified thumb at forearm level S56.1 - Injury of flexor muscle, fascia and tendon of other and unspecified finger at forearm level S56.10 - Unspecified injury of flexor muscle, fascia and tendon of other and unspecified finger at forearm level S56.101 - Unspecified injury of flexor muscle, fascia and tendon of right index finger at forearm level S56.102 - Unspecified injury of flexor muscle, fascia and tendon of left index finger at forearm level S56.103 - Unspecified injury of flexor muscle, fascia and tendon of right middle finger at forearm level S56.104 - Unspecified injury of flexor muscle, fascia and tendon of left middle finger at forearm level S56.105 - Unspecified injury of flexor muscle, fascia and tendon of right ring finger at forearm level S56.106 - Unspecified injury of flexor muscle, fascia and tendon of left ring finger at forearm level S56.107 - Unspecified injury of flexor muscle, fascia and tendon of right little finger at forearm level S56.108 - Unspecified injury of flexor muscle, fascia and tendon of left little finger at forearm level S56.109 - Unspecified injury of flexor muscle, fascia and tendon of unspecified finger at forearm level S56.11 - Strain of flexor muscle, fascia and tendon of other and unspecified finger at forearm level S56.111 - Strain of flexor muscle, fascia and tendon of right index finger at forearm level S56.112 - Strain of flexor muscle, fascia and tendon of left index finger at forearm level S56.113 - Strain of flexor muscle, fascia and tendon of right middle finger at forearm level S56.114 - Strain of flexor muscle, fascia and tendon of left middle finger at forearm level S56.115 - Strain of flexor muscle, fascia and tendon of right ring finger at forearm level S56.116 - Strain of flexor muscle, fascia and tendon of left ring finger at forearm level S56.117 - Strain of flexor muscle, fascia and tendon of right little finger at forearm level S56.118 - Strain of flexor muscle, fascia and tendon of left little finger at forearm level S56.119 - Strain of flexor muscle, fascia and tendon of finger of unspecified finger at forearm level S56.12 - Laceration of flexor muscle, fascia and tendon of other and unspecified finger at forearm level S56.121 - Laceration of flexor muscle, fascia and tendon of right index finger at forearm level S56.122 - Laceration of flexor muscle, fascia and tendon of left index finger at forearm level S56.123 - Laceration of flexor muscle, fascia and tendon of right middle finger at forearm level S56.124 - Laceration of flexor muscle, fascia and tendon of left middle finger at forearm level S56.125 - Laceration of flexor muscle, fascia and tendon of right ring finger at forearm level S56.126 - Laceration of flexor muscle, fascia and tendon of left ring finger at forearm level S56.127 - Laceration of flexor muscle, fascia and tendon of right little finger at forearm level S56.128 - Laceration of flexor muscle, fascia and tendon of left little finger at forearm level S56.129 - Laceration of flexor muscle, fascia and tendon of unspecified finger at forearm level S56.19 - Other injury of flexor muscle, fascia and tendon of other and unspecified finger at forearm level S56.191 - Other injury of flexor muscle, fascia and tendon of right index finger at forearm level S56.192 - Other injury of flexor muscle, fascia and tendon of left index finger at forearm level S56.193 - Other injury of flexor muscle, fascia and tendon of right middle finger at forearm level S56.194 - Other injury of flexor muscle, fascia and tendon of left middle finger at forearm level S56.195 - Other injury of flexor muscle, fascia and tendon of right ring finger at forearm level S56.196 - Other injury of flexor muscle, fascia and tendon of left ring finger at forearm level S56.197 - Other injury of flexor muscle, fascia and tendon of right little finger at forearm level S56.198 - Other injury of flexor muscle, fascia and tendon of left little finger at forearm level S56.199 - Other injury of flexor muscle, fascia and tendon of unspecified finger at forearm level S56.2 - Injury of other flexor muscle, fascia and tendon at forearm level S56.20 - Unspecified injury of other flexor muscle, fascia and tendon at forearm level S56.201 - Unspecified injury of other flexor muscle, fascia and tendon at forearm level, right arm S56.202 - Unspecified injury of other flexor muscle, fascia and tendon at forearm level, left arm S56.209 - Unspecified injury of other flexor muscle, fascia and tendon at forearm level, unspecified arm S56.21 - Strain of other flexor muscle, fascia and tendon at forearm level S56.211 - Strain of other flexor muscle, fascia and tendon at forearm level, right arm S56.212 - Strain of other flexor muscle, fascia and tendon at forearm level, left arm S56.219 - Strain of other flexor muscle, fascia and tendon at forearm level, unspecified arm S56.22 - Laceration of other flexor muscle, fascia and tendon at forearm level S56.221 - Laceration of other flexor muscle, fascia and tendon at forearm level, right arm S56.222 - Laceration of other flexor muscle, fascia and tendon at forearm level, left arm S56.229 - Laceration of other flexor muscle, fascia and tendon at forearm level, unspecified arm S56.29 - Other injury of other flexor muscle, fascia and tendon at forearm level S56.291 - Other injury of other flexor muscle, fascia and tendon at forearm level, right arm S56.292 - Other injury of other flexor muscle, fascia and tendon at forearm level, left arm S56.299 - Other injury of other flexor muscle, fascia and tendon at forearm level, unspecified arm S56.3 - Injury of extensor or abductor muscles, fascia and tendons of thumb at forearm level S56.30 - Unspecified injury of extensor or abductor muscles, fascia and tendons of thumb at forearm level S56.301 - Unspecified injury of extensor or abductor muscles, fascia and tendons of right thumb at forearm level S56.302 - Unspecified injury of extensor or abductor muscles, fascia and tendons of left thumb at forearm level S56.309 - Unspecified injury of extensor or abductor muscles, fascia and tendons of unspecified thumb at forearm level S56.31 - Strain of extensor or abductor muscles, fascia and tendons of thumb at forearm level S56.311 - Strain of extensor or abductor muscles, fascia and tendons of right thumb at forearm level S56.312 - Strain of extensor or abductor muscles, fascia and tendons of left thumb at forearm level S56.319 - Strain of extensor or abductor muscles, fascia and tendons of unspecified thumb at forearm level S56.32 - Laceration of extensor or abductor muscles, fascia and tendons of thumb at forearm level S56.321 - Laceration of extensor or abductor muscles, fascia and tendons of right thumb at forearm level S56.322 - Laceration of extensor or abductor muscles, fascia and tendons of left thumb at forearm level S56.329 - Laceration of extensor or abductor muscles, fascia and tendons of unspecified thumb at forearm level S56.39 - Other injury of extensor or abductor muscles, fascia and tendons of thumb at forearm level S56.391 - Other injury of extensor or abductor muscles, fascia and tendons of right thumb at forearm level S56.392 - Other injury of extensor or abductor muscles, fascia and tendons of left thumb at forearm level S56.399 - Other injury of extensor or abductor muscles, fascia and tendons of unspecified thumb at forearm level S56.4 - Injury of extensor muscle, fascia and tendon of other and unspecified finger at forearm level S56.40 - Unspecified injury of extensor muscle, fascia and tendon of other and unspecified finger at forearm level S56.401 - Unspecified injury of extensor muscle, fascia and tendon of right index finger at forearm level S56.402 - Unspecified injury of extensor muscle, fascia and tendon of left index finger at forearm level S56.403 - Unspecified injury of extensor muscle, fascia and tendon of right middle finger at forearm level S56.404 - Unspecified injury of extensor muscle, fascia and tendon of left middle finger at forearm level S56.405 - Unspecified injury of extensor muscle, fascia and tendon of right ring finger at forearm level S56.406 - Unspecified injury of extensor muscle, fascia and tendon of left ring finger at forearm level S56.407 - Unspecified injury of extensor muscle, fascia and tendon of right little finger at forearm level S56.408 - Unspecified injury of extensor muscle, fascia and tendon of left little finger at forearm level S56.409 - Unspecified injury of extensor muscle, fascia and tendon of unspecified finger at forearm level S56.41 - Strain of extensor muscle, fascia and tendon of other and unspecified finger at forearm level S56.411 - Strain of extensor muscle, fascia and tendon of right index finger at forearm level S56.412 - Strain of extensor muscle, fascia and tendon of left index finger at forearm level S56.413 - Strain of extensor muscle, fascia and tendon of right middle finger at forearm level S56.414 - Strain of extensor muscle, fascia and tendon of left middle finger at forearm level S56.415 - Strain of extensor muscle, fascia and tendon of right ring finger at forearm level S56.416 - Strain of extensor muscle, fascia and tendon of left ring finger at forearm level S56.417 - Strain of extensor muscle, fascia and tendon of right little finger at forearm level S56.418 - Strain of extensor muscle, fascia and tendon of left little finger at forearm level S56.419 - Strain of extensor muscle, fascia and tendon of finger, unspecified finger at forearm level S56.42 - Laceration of extensor muscle, fascia and tendon of other and unspecified finger at forearm level S56.421 - Laceration of extensor muscle, fascia and tendon of right index finger at forearm level S56.422 - Laceration of extensor muscle, fascia and tendon of left index finger at forearm level S56.423 - Laceration of extensor muscle, fascia and tendon of right middle finger at forearm level S56.424 - Laceration of extensor muscle, fascia and tendon of left middle finger at forearm level S56.425 - Laceration of extensor muscle, fascia and tendon of right ring finger at forearm level S56.426 - Laceration of extensor muscle, fascia and tendon of left ring finger at forearm level S56.427 - Laceration of extensor muscle, fascia and tendon of right little finger at forearm level S56.428 - Laceration of extensor muscle, fascia and tendon of left little finger at forearm level S56.429 - Laceration of extensor muscle, fascia and tendon of unspecified finger at forearm level S56.49 - Other injury of extensor muscle, fascia and tendon of other and unspecified finger at forearm level S56.491 - Other injury of extensor muscle, fascia and tendon of right index finger at forearm level S56.492 - Other injury of extensor muscle, fascia and tendon of left index finger at forearm level S56.493 - Other injury of extensor muscle, fascia and tendon of right middle finger at forearm level S56.494 - Other injury of extensor muscle, fascia and tendon of left middle finger at forearm level S56.495 - Other injury of extensor muscle, fascia and tendon of right ring finger at forearm level S56.496 - Other injury of extensor muscle, fascia and tendon of left ring finger at forearm level S56.497 - Other injury of extensor muscle, fascia and tendon of right little finger at forearm level S56.498 - Other injury of extensor muscle, fascia and tendon of left little finger at forearm level S56.499 - Other injury of extensor muscle, fascia and tendon of unspecified finger at forearm level S56.5 - Injury of other extensor muscle, fascia and tendon at forearm level S56.50 - Unspecified injury of other extensor muscle, fascia and tendon at forearm level S56.501 - Unspecified injury of other extensor muscle, fascia and tendon at forearm level, right arm S56.502 - Unspecified injury of other extensor muscle, fascia and tendon at forearm level, left arm S56.509 - Unspecified injury of other extensor muscle, fascia and tendon at forearm level, unspecified arm S56.51 - Strain of other extensor muscle, fascia and tendon at forearm level S56.511 - Strain of other extensor muscle, fascia and tendon at forearm level, right arm S56.512 - Strain of other extensor muscle, fascia and tendon at forearm level, left arm S56.519 - Strain of other extensor muscle, fascia and tendon at forearm level, unspecified arm S56.52 - Laceration of other extensor muscle, fascia and tendon at forearm level S56.521 - Laceration of other extensor muscle, fascia and tendon at forearm level, right arm S56.522 - Laceration of other extensor muscle, fascia and tendon at forearm level, left arm S56.529 - Laceration of other extensor muscle, fascia and tendon at forearm level, unspecified arm S56.59 - Other injury of other extensor muscle, fascia and tendon at forearm level S56.591 - Other injury of other extensor muscle, fascia and tendon at forearm level, right arm S56.592 - Other injury of other extensor muscle, fascia and tendon at forearm level, left arm S56.599 - Other injury of other extensor muscle, fascia and tendon at forearm level, unspecified arm S56.8 - Injury of other muscles, fascia and tendons at forearm level S56.80 - Unspecified injury of other muscles, fascia and tendons at forearm level S56.801 - Unspecified injury of other muscles, fascia and tendons at forearm level, right arm S56.802 - Unspecified injury of other muscles, fascia and tendons at forearm level, left arm S56.809 - Unspecified injury of other muscles, fascia and tendons at forearm level, unspecified arm S56.81 - Strain of other muscles, fascia and tendons at forearm level S56.811 - Strain of other muscles, fascia and tendons at forearm level, right arm S56.812 - Strain of other muscles, fascia and tendons at forearm level, left arm S56.819 - Strain of other muscles, fascia and tendons at forearm level, unspecified arm S56.82 - Laceration of other muscles, fascia and tendons at forearm level S56.821 - Laceration of other muscles, fascia and tendons at forearm level, right arm S56.822 - Laceration of other muscles, fascia and tendons at forearm level, left arm S56.829 - Laceration of other muscles, fascia and tendons at forearm level, unspecified arm S56.89 - Other injury of other muscles, fascia and tendons at forearm level S56.891 - Other injury of other muscles, fascia and tendons at forearm level, right arm S56.892 - Other injury of other muscles, fascia and tendons at forearm level, left arm S56.899 - Other injury of other muscles, fascia and tendons at forearm level, unspecified arm S56.9 - Injury of unspecified muscles, fascia and tendons at forearm level S56.90 - Unspecified injury of unspecified muscles, fascia and tendons at forearm level S56.901 - Unspecified injury of unspecified muscles, fascia and tendons at forearm level, right arm S56.902 - Unspecified injury of unspecified muscles, fascia and tendons at forearm level, left arm S56.909 - Unspecified injury of unspecified muscles, fascia and tendons at forearm level, unspecified arm S56.91 - Strain of unspecified muscles, fascia and tendons at forearm level S56.911 - Strain of unspecified muscles, fascia and tendons at forearm level, right arm S56.912 - Strain of unspecified muscles, fascia and tendons at forearm level, left arm S56.919 - Strain of unspecified muscles, fascia and tendons at forearm level, unspecified arm S56.92 - Laceration of unspecified muscles, fascia and tendons at forearm level S56.921 - Laceration of unspecified muscles, fascia and tendons at forearm level, right arm S56.922 - Laceration of unspecified muscles, fascia and tendons at forearm level, left arm S56.929 - Laceration of unspecified muscles, fascia and tendons at forearm level, unspecified arm S56.99 - Other injury of unspecified muscles, fascia and tendons at forearm level S56.991 - Other injury of unspecified muscles, fascia and tendons at forearm level, right arm S56.992 - Other injury of unspecified muscles, fascia and tendons at forearm level, left arm S56.999 - Other injury of unspecified muscles, fascia and tendons at forearm level, unspecified arm

About ICD-10-CM Code S56 (Injury of muscle)

ICD-10-CM code S56 is a billable or specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes. The 2025 edition of ICD-10-CM S56 became effective on October 1, 2024.

This page provides detailed information about S56 - Injury of muscle, fascia and tendon at forearm level. It includes common terminology, coding guidelines such as "Includes," "Excludes1," and "Excludes2" notes, and information on required 7th characters. Utilizing this information correctly is essential for accurate medical coding and claims submission for conditions like Injury of muscle related to fascia and tendon at forearm level.