S93.312 – Subluxation of tarsal joint of left foot

ICD-10-CM 2027 diagnosis code · Injuries to the ankle and foot

Non-billable header

ICD-10-CM code S93.312

Code: S93.312 (claims format: S93312)
Description: Subluxation of tarsal joint of left foot
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: S90-S99 Injuries to the ankle and foot
Parent codes: S93 › S93.3 › S93.31

Billable codes under S93.312

S93.312 is a header code and cannot be used on claims. Choose the most specific code:

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.

S93 – Dislocation and sprain of joints and ligaments at ankle, foot and toe level

Includes:

avulsion of joint or ligament of ankle, foot and toe
laceration of cartilage, joint or ligament of ankle, foot and toe
sprain of cartilage, joint or ligament of ankle, foot and toe
traumatic hemarthrosis of joint or ligament of ankle, foot and toe
traumatic rupture of joint or ligament of ankle, foot and toe
traumatic subluxation of joint or ligament of ankle, foot and toe
traumatic tear of joint or ligament of ankle, foot and toe

Excludes2 (not included here):

strain of muscle and tendon of ankle and foot (S96.-)

Code also:

any associated open wound

7th character note:

The appropriate 7th character is to be added to each code from category S93

S93.3 – Subluxation and dislocation of foot

Excludes2 (not included here):

dislocation of toe (S93.1-)

Block S90-S99

Excludes2 (not included here):

burns and corrosions (T20-T32)
fracture of ankle and malleolus (S82.-)
frostbite (T33-T34)
insect bite or sting, venomous (T63.4)

Related codes in S93.31

Frequently asked questions

What is ICD-10 code S93.312?

S93.312 is the ICD-10-CM code for subluxation of tarsal joint of left foot, in the block S90-S99 (Injuries to the ankle and foot).

Is S93.312 a billable code?

No. S93.312 is a header code with more specific child codes; report one of the billable codes listed above.

What category does S93.312 belong to?

It belongs to category S93 – Dislocation and sprain of joints and ligaments at ankle, foot and toe 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.