S43.03 – Inferior subluxation and dislocation of humerus

ICD-10-CM 2027 diagnosis code · Injuries to the shoulder and upper arm

Non-billable header

ICD-10-CM code S43.03

Code: S43.03 (claims format: S4303)
Description: Inferior subluxation and dislocation of humerus
Billable: No – use a more specific code below
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: S40-S49 Injuries to the shoulder and upper arm
Parent codes: S43 › S43.0

Billable codes under S43.03

S43.03 is a header code and cannot be used on claims. Choose the most specific code:

S43.031 – Inferior subluxation of right humerusHeader (more codes below)
S43.032 – Inferior subluxation of left humerusHeader (more codes below)
S43.033 – Inferior subluxation of unspecified humerusHeader (more codes below)
S43.034 – Inferior dislocation of right humerusHeader (more codes below)
S43.035 – Inferior dislocation of left humerusHeader (more codes below)
S43.036 – Inferior dislocation of unspecified humerusHeader (more codes below)

7th character values

Codes in this category need a 7th character to describe the encounter or episode of care (use placeholder X for empty positions).

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.

S43 – Dislocation and sprain of joints and ligaments of shoulder girdle

Includes:

avulsion of joint or ligament of shoulder girdle
laceration of cartilage, joint or ligament of shoulder girdle
sprain of cartilage, joint or ligament of shoulder girdle
traumatic hemarthrosis of joint or ligament of shoulder girdle
traumatic rupture of joint or ligament of shoulder girdle
traumatic subluxation of joint or ligament of shoulder girdle
traumatic tear of joint or ligament of shoulder girdle

Excludes2 (not included here):

strain of muscle, fascia and tendon of shoulder and upper arm (S46.-)

Code also:

any associated open wound

7th character note:

The appropriate 7th character is to be added to each code from category S43

S43.0 – Subluxation and dislocation of shoulder joint

Applicable to:

Dislocation of glenohumeral joint
Subluxation of glenohumeral joint

Block S40-S49

Includes:

injuries of axilla
injuries of scapular region

Excludes2 (not included here):

burns and corrosions (T20-T32)
frostbite (T33-T34)
injuries of elbow (S50-S59)
insect bite or sting, venomous (T63.4)

Index terms for S43.03

Entries in the ICD-10-CM alphabetic index that lead to this code:

Related codes in S43.0

Frequently asked questions

What is ICD-10 code S43.03?

S43.03 is the ICD-10-CM code for inferior subluxation and dislocation of humerus, in the block S40-S49 (Injuries to the shoulder and upper arm).

Is S43.03 a billable code?

No. S43.03 is a header code with more specific child codes; report one of the billable codes listed above.

What category does S43.03 belong to?

It belongs to category S43 – Dislocation and sprain of joints and ligaments of shoulder girdle.

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.