Is ICD-10-CM code S29 billable?

No, S29 (Other and unspecified injuries of thorax) is a non-billable ICD-10-CM code. It must be coded to a more specific subcategory before it can be used for reimbursement.

What chapter does ICD-10-CM code S29 belong to?

S29 belongs to Chapter 19 of the ICD-10-CM tabular list: S00–T88 (Injury, Poisoning and Certain Other Consequences of External Causes).

S29Non-billable

Other and unspecified injuries of thorax

Injury, Poisoning and Certain Other Consequences of External Causes·Injuries to the thorax (S20-S29)·category·FY 2026

Use a more specific code (2 billable, 1 non-billable)

S29.0Injury of muscle and tendon at thorax levelhas subcodes S29.8Other specified injuries of thorax S29.9Unspecified injury of thorax

CH19 Parent Instructions

Excludes2(Not included here. Code separately if applicable.)

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

Use Additional Code

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

S20-S29 Parent Instructions

Includes

injuries of breast
injuries of chest (wall)
injuries of interscapular area

Excludes2(Not included here. Code separately if applicable.)

burns and corrosions (T20-T32)
effects of foreign body in bronchus (T17.5)
effects of foreign body in esophagus (T18.1)
effects of foreign body in lung (T17.8)
effects of foreign body in trachea (T17.4)
frostbite (T33-T34)
injuries of axilla
injuries of clavicle
injuries of scapular region
injuries of shoulder
insect bite or sting, venomous (T63.4)

Instructional Notes

Code Also

any associated open wound (S21.-)

Clinical Hierarchy

BillableHas subcodes

CH19Injury, poisoning and certain other consequences of external causes (S00-T88)

S20-S29Injuries to the thorax (S20-S29)

S29Other and unspecified injuries of thoraxNot billable

S29.0Injury of muscle and tendon at thorax levelSubcodes

S29.8Other specified injuries of thoraxBillable

S29.9Unspecified injury of thoraxBillable

MS-DRG Classification

2026

No direct MS-DRG triggers identified.