S20.142Header code — not billable

External constriction of part of breast, left breast

Chapter
19. Injury, poisoning and certain other consequences of external causes
Category
S20
Effective date
October 1, 2026

Related codes in category S20

Frequently asked questions

What is ICD-10 code S20.142?

S20.142 is an ICD-10-CM diagnosis code for External constriction of part of breast, left breast.

Is S20.142 a billable code?

No. S20.142 is a category/header code, not billable on its own — use one of its more specific child codes instead.

What ICD-10-CM chapter is S20.142 in?

S20.142 falls under Chapter 19: Injury, poisoning and certain other consequences of external causes.

When did S20.142 become effective?

S20.142 has been effective since October 1, 2026, per the CMS/CDC ICD-10-CM annual release.

What other codes are related to S20.142?

S20.142 belongs to category S20, which includes 12 other codes — see the related codes list on this page.

ICD-10-CM data maintained by CDC/CMS (public domain). Always verify codes with authoritative sources before making coding or billing decisions.