Is S20.342 a billable code?
No. S20.342 is a header code that groups 3 more specific codes. Use one of the billable codes listed on this page instead.
ICD-10-CM FY2027 diagnosis code
S20.342: External constriction of left front wall of thorax
Header code: not billableValid for dates of service October 1, 2026 to September 30, 2027
S20.342 groups related diagnoses under external constriction of left front wall of thorax. It cannot be used on a claim by itself. Choose the billable code below that matches the patient's record.
Billable codes under S20.342
- S20.342AExternal constriction of left front wall of thorax, initial encounter
- S20.342DExternal constriction of left front wall of thorax, subsequent encounter
- S20.342SExternal constriction of left front wall of thorax, sequela
Other codes in S20.34 External constriction of front wall of thorax
S20.342 questions
What does S20.342 mean?
S20.342 is the ICD-10-CM code for External constriction of left front wall of thorax. It is in chapter 19, Injury, poisoning and certain other consequences of external causes (S00-T88).
Code titles come from the official ICD-10-CM files published by the CDC National Center for Health Statistics. Always check payer rules and the clinical record before billing.