ICD-10-CM · FY 2026 APRIL UPDATE

S56.1

Injury of flexor muscle, fascia and tendon of other and unspecified finger at forearm level

Diagnosis reference

Nonbillable category

This entry is a category or subcategory. Choose the appropriate billable descendant based on the clinical documentation.

Effective periodOctober 1, 2026–September 30, 2027

SourceCMS ICD-10-CM order file

ClassificationDiagnosis · clinical modification

Related entries

Up to 30 descendants in this category

CODE	DESCRIPTION	TYPE
S56.10	Unspecified injury of flexor muscle, fascia and tendon of other and unspecified finger at forearm level	Category
S56.101	Unspecified injury of flexor muscle, fascia and tendon of right index finger at forearm level	Category
S56.101A	Unspecified injury of flexor muscle, fascia and tendon of right index finger at forearm level, initial encounter	Billable
S56.101D	Unspecified injury of flexor muscle, fascia and tendon of right index finger at forearm level, subsequent encounter	Billable
S56.101S	Unspecified injury of flexor muscle, fascia and tendon of right index finger at forearm level, sequela	Billable
S56.102	Unspecified injury of flexor muscle, fascia and tendon of left index finger at forearm level	Category
S56.102A	Unspecified injury of flexor muscle, fascia and tendon of left index finger at forearm level, initial encounter	Billable
S56.102D	Unspecified injury of flexor muscle, fascia and tendon of left index finger at forearm level, subsequent encounter	Billable
S56.102S	Unspecified injury of flexor muscle, fascia and tendon of left index finger at forearm level, sequela	Billable
S56.103	Unspecified injury of flexor muscle, fascia and tendon of right middle finger at forearm level	Category
S56.103A	Unspecified injury of flexor muscle, fascia and tendon of right middle finger at forearm level, initial encounter	Billable
S56.103D	Unspecified injury of flexor muscle, fascia and tendon of right middle finger at forearm level, subsequent encounter	Billable
S56.103S	Unspecified injury of flexor muscle, fascia and tendon of right middle finger at forearm level, sequela	Billable
S56.104	Unspecified injury of flexor muscle, fascia and tendon of left middle finger at forearm level	Category
S56.104A	Unspecified injury of flexor muscle, fascia and tendon of left middle finger at forearm level, initial encounter	Billable
S56.104D	Unspecified injury of flexor muscle, fascia and tendon of left middle finger at forearm level, subsequent encounter	Billable
S56.104S	Unspecified injury of flexor muscle, fascia and tendon of left middle finger at forearm level, sequela	Billable
S56.105	Unspecified injury of flexor muscle, fascia and tendon of right ring finger at forearm level	Category
S56.105A	Unspecified injury of flexor muscle, fascia and tendon of right ring finger at forearm level, initial encounter	Billable
S56.105D	Unspecified injury of flexor muscle, fascia and tendon of right ring finger at forearm level, subsequent encounter	Billable
S56.105S	Unspecified injury of flexor muscle, fascia and tendon of right ring finger at forearm level, sequela	Billable
S56.106	Unspecified injury of flexor muscle, fascia and tendon of left ring finger at forearm level	Category
S56.106A	Unspecified injury of flexor muscle, fascia and tendon of left ring finger at forearm level, initial encounter	Billable
S56.106D	Unspecified injury of flexor muscle, fascia and tendon of left ring finger at forearm level, subsequent encounter	Billable
S56.106S	Unspecified injury of flexor muscle, fascia and tendon of left ring finger at forearm level, sequela	Billable
S56.107	Unspecified injury of flexor muscle, fascia and tendon of right little finger at forearm level	Category
S56.107A	Unspecified injury of flexor muscle, fascia and tendon of right little finger at forearm level, initial encounter	Billable
S56.107D	Unspecified injury of flexor muscle, fascia and tendon of right little finger at forearm level, subsequent encounter	Billable
S56.107S	Unspecified injury of flexor muscle, fascia and tendon of right little finger at forearm level, sequela	Billable
S56.108	Unspecified injury of flexor muscle, fascia and tendon of left little finger at forearm level	Category

Use the complete reference

This reference does not reproduce the full tabular hierarchy, inclusion notes, Excludes1/2 notes, sequencing instructions, or seventh-character rules. Review the official tables and coding guidelines.

Open official CMS files

ICD-10-CM codes describe diagnoses. They do not have an independent Medicare PFS reimbursement amount, and billability alone does not establish coverage.