W49.02

W49.02: String or thread causing external constriction

Non-billable headerICD-10-CM

W49.02 is a non-billable header ICD-10-CM code for string or thread causing external constriction. It cannot be billed on its own: choose one of the more specific child codes below. This code also requires a 7th character before it is complete.

This code requires a 7th character

The appropriate 7th character is to be added to each code from category W49

A: initial encounter
D: subsequent encounter
S: sequela

Excludes1 inherited from the categories above W49.02

A category’s note binds every code beneath it.

Written on W49: Exposure to other inanimate mechanical forces

exposure to inanimate mechanical forces involving military or war operations (Y36.-, Y37.-)

Risk adjustment

No CMS-HCC V28 category: this code does not change a RAF score.

Alphabetic index entries that lead here

Constriction›string
Constriction›thread

Code history

Unchanged in every release from FY2024 to FY2027.

Code to one of these instead W49.02

3 child codes. Green means billable.