S66
Non-billableInjury of muscle, fascia and tendon at wrist and hand level
Injury of muscle, fascia and tendon at wrist and hand level
This is a header/category code. For billing purposes, use a more specific child code from the list below.
Coding Notes
Excludes 1
Codes that cannot be used together with this code (mutual exclusion)
Excludes 2
Conditions not included here, but the patient may have both
Use Additional Code
Additional codes that should follow this code
Code Also
A second code may be required; sequencing depends on circumstances
7th Character Definitions
- A - initial encounter
- D - subsequent encounter
- S - sequela
Child Codes (8)
S66.0Injury of long flexor musc/fasc/tend thumb at wrs/hnd lv
S66.1Inj flexor musc/fasc/tend and unsp finger at wrs/hnd lv
S66.2Injury of extensor musc/fasc/tend thumb at wrs/hnd lv
S66.3Inj extensor musc/fasc/tend and unsp finger at wrs/hnd lv
S66.4Injury of intrinsic musc/fasc/tend thumb at wrs/hnd lv
S66.5Inj intrinsic musc/fasc/tend and unsp finger at wrs/hnd lv
S66.8Injury of musc/fasc/tend at wrist and hand level
S66.9Injury of unsp musc/fasc/tend at wrist and hand level
ICD-11 Equivalents(1)
ICD-11 Equivalents
View full mappingCorresponding ICD-11 codes from the WHO crosswalk mapping
Also Known As / Clinical Terms(1)
Frequently Asked Questions
What is the ICD-10 code for injury of muscle, fascia and tendon at wrist and hand level?
The ICD-10-CM code for injury of muscle, fascia and tendon at wrist and hand level is S66. The full clinical description is "Injury of muscle, fascia and tendon at wrist and hand level". S66 is a non-billable header code. Use a more specific child code for billing purposes.
What does ICD-10 code S66 mean?
ICD-10-CM code S66 represents “Injury of muscle, fascia and tendon at wrist and hand level”. It is classified under Chapter 19: Injury, Poisoning and Certain Other Consequences of External Causes and is a non-billable header code. Use a more specific child code for billing purposes.
Is S66 a billable code?
No, S66 is a non-billable header code. You need to use one of its more specific child codes for billing. There are 8 child codes under S66.
What chapter is S66 in?
S66 is in Chapter 19: Injury, Poisoning and Certain Other Consequences of External Causes (codes S00-T88).
What codes cannot be used with S66?
S66 has Excludes1 notes indicating codes that cannot be used together with it, including: birth trauma (P10-P15); obstetric trauma (O70-O71).
What are the subcategories under S66?
S66 has 8 child codes, including: S66.0 (Injury of long flexor musc/fasc/tend thumb at wrs/hnd lv), S66.1 (Inj flexor musc/fasc/tend and unsp finger at wrs/hnd lv), S66.2 (Injury of extensor musc/fasc/tend thumb at wrs/hnd lv), S66.3 (Inj extensor musc/fasc/tend and unsp finger at wrs/hnd lv), and 4 more.
Are additional codes required with S66?
Yes, when using S66, also report: any retained foreign body, if applicable (Z18.-).
What are the UMLS CUIs for S66?
S66 is linked to 1 UMLS Concept Unique Identifier: C2854960. The UMLS (Unified Medical Language System) integrates multiple biomedical vocabularies maintained by the U.S. National Library of Medicine.
How does S66 relate to ICF functioning codes?
ICF (International Classification of Functioning, Disability and Health) codes describe how conditions like injury of muscle, fascia and tendon at wrist and hand level affect a person's functioning — body functions, activities, participation, and environmental factors. AutoICD provides ICF Core Sets for 12+ conditions and can map clinical text to ICF categories automatically. Browse the ICF directory to explore functioning codes.
What is the ICD-11 equivalent of S66?
S66 maps to the ICD-11 code: NC57.Z (Injury of unspecified muscle, fascia or tendon at wrist or hand level).
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Includes SNOMED Clinical Terms® (SNOMED CT®) used by permission of SNOMED International. Includes content from the UMLS Metathesaurus, courtesy of the U.S. National Library of Medicine.