S04.20

Non-billable

Injury of trochlear nerve, unspecified side

Chapter 19: Injury, poisoning and certain other consequences of external causes

Additional Information

From parent codes: S00-T88 (Chapter 19)

Excludes 1 — Not Coded HereFrom S00-T88

Excludes1 means 'NOT CODED HERE!' An Excludes1 note indicates mutually exclusive codes: two conditions that cannot be reported together.

birth trauma (P10-P15)
obstetric trauma (O70-O71)

Use Additional CodeFrom S00-T88

The 'use additional code' note instructs that a secondary code should be added to provide more detail.

code to identify any retained foreign body, if applicable (Z18.-)

More Specific Codes (6)

S04.2Injury of trochlear nerveCategory→S04.21Injury of trochlear nerve, right sideCategory→S04.22Injury of trochlear nerve, left sideCategory→S04.20XAInjury of trochlear nerve, unspecified side (initial encounter)Billable→S04.20XDInjury of trochlear nerve, unspecified side (subsequent encounter)Billable→S04.20XSInjury of trochlear nerve, unspecified side (sequela)Billable→

Chapter Information

Chapter 19: Injury, poisoning and certain other consequences of external causes

Range: S00-T88

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Related ICD-10 Codes

More specific codes for S04.20

Injury of trochlear nerve

Injury of trochlear nerve, right side

Injury of trochlear nerve, left side

Injury of trochlear nerve, unspecified side (initial encounter)

Injury of trochlear nerve, unspecified side (subsequent encounter)

Injury of trochlear nerve, unspecified side (sequela)