S73.1 – Sprain of hip

ICD-10-CM 2027 diagnosis code · Injuries to the hip and thigh

Non-billable header

ICD-10-CM code S73.1

Code: S73.1 (claims format: S731)
Description: Sprain of hip
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: S70-S79 Injuries to the hip and thigh
Parent codes: S73

Billable codes under S73.1

S73.1 is a header code and cannot be used on claims. Choose the most specific code:

S73.10 – Unspecified sprain of hipHeader (more codes below)
S73.11 – Iliofemoral ligament sprain of hipHeader (more codes below)
S73.12 – Ischiocapsular (ligament) sprain of hipHeader (more codes below)
S73.19 – Other sprain of hipHeader (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.

S73 – Dislocation and sprain of joint and ligaments of hip

Includes:

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

Excludes2 (not included here):

strain of muscle, fascia and tendon of hip and thigh (S76.-)

Code also:

any associated open wound

7th character note:

The appropriate 7th character is to be added to each code from category S73

Block S70-S79

Excludes2 (not included here):

burns and corrosions (T20-T32)
frostbite (T33-T34)
snake bite (T63.0-)
venomous insect bite or sting (T63.4-)

Related codes in S73

S73.0 – Subluxation and dislocation of hipHeader

Frequently asked questions

What is ICD-10 code S73.1?

S73.1 is the ICD-10-CM code for sprain of hip, in the block S70-S79 (Injuries to the hip and thigh).

Is S73.1 a billable code?

No. S73.1 is a header code with more specific child codes; report one of the billable codes listed above.

What category does S73.1 belong to?

It belongs to category S73 – Dislocation and sprain of joint and ligaments of hip.

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.