S24.9XXS – Injury of unspecified nerve of thorax, sequela

ICD-10-CM 2027 diagnosis code · Injuries to the thorax

Billable code

ICD-10-CM code S24.9XXS

Code: S24.9XXS (claims format: S249XXS)
Description: Injury of unspecified nerve of thorax, sequela
Billable: Yes – valid for HIPAA-covered transactions
Valid for: Dates of service October 1, 2026 – September 30, 2027 (FY2027)
Chapter: 19. Injury, poisoning and certain other consequences of external causes (S00-T88)
Block: S20-S29 Injuries to the thorax
Parent codes: S24 › S24.9

7th character values

Codes in this category need a 7th character to describe the encounter or episode of care.

Character	Meaning
`A`	initial encounter
`D`	subsequent encounter
`S`	sequela

Notes inherited from parent codes

Instructional notes at a category or block level apply to every code below it.

S24 – Injury of nerves and spinal cord at thorax level

Excludes2 (not included here):

injury of brachial plexus (S14.3)

Code also:

any associated:
fracture of thoracic vertebra (S22.0-)
open wound of thorax (S21.-)
transient paralysis (R29.5)

Notes:

Code to highest level of thoracic spinal cord injury
Injuries to the spinal cord (S24.0 and S24.1) refer to the cord level and not bone level injury, and can affect nerve roots at and below the level given.

7th character note:

The appropriate 7th character is to be added to each code from category S24

Block S20-S29

Includes:

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

Excludes2 (not included here):

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)

Related codes in S24.9

Frequently asked questions

What is ICD-10 code S24.9XXS?

S24.9XXS is the ICD-10-CM code for injury of unspecified nerve of thorax, sequela, in the block S20-S29 (Injuries to the thorax).

Is S24.9XXS a billable code?

Yes. S24.9XXS is a billable/specific code that can be used to indicate a diagnosis for reimbursement purposes.

What category does S24.9XXS belong to?

It belongs to category S24 – Injury of nerves and spinal cord at thorax level.

Source: CDC/NCHS ICD-10-CM FY2027 code files, tabular list and index. Reference only – code assignment must follow the official ICD-10-CM guidelines and documentation in the medical record.