S63.112 – Subluxation of metacarpophalangeal joint of left thumb

ICD-10-CM 2027 diagnosis code · Injuries to the wrist, hand and fingers

Non-billable header

ICD-10-CM code S63.112

Code: S63.112 (claims format: S63112)
Description: Subluxation of metacarpophalangeal joint of left thumb
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: S60-S69 Injuries to the wrist, hand and fingers
Parent codes: S63 › S63.1 › S63.11

Billable codes under S63.112

S63.112 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.

S63 – Dislocation and sprain of joints and ligaments at wrist and hand level

Includes:

avulsion of joint or ligament at wrist and hand level
laceration of cartilage, joint or ligament at wrist and hand level
sprain of cartilage, joint or ligament at wrist and hand level
traumatic hemarthrosis of joint or ligament at wrist and hand level
traumatic rupture of joint or ligament at wrist and hand level
traumatic subluxation of joint or ligament at wrist and hand level
traumatic tear of joint or ligament at wrist and hand level

Excludes2 (not included here):

strain of muscle, fascia and tendon of wrist and hand (S66.-)

Code also:

any associated open wound

7th character note:

The appropriate 7th character is to be added to each code from category S63

Block S60-S69

Excludes2 (not included here):

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

Related codes in S63.11

Frequently asked questions

What is ICD-10 code S63.112?

S63.112 is the ICD-10-CM code for subluxation of metacarpophalangeal joint of left thumb, in the block S60-S69 (Injuries to the wrist, hand and fingers).

Is S63.112 a billable code?

No. S63.112 is a header code with more specific child codes; report one of the billable codes listed above.

What category does S63.112 belong to?

It belongs to category S63 – Dislocation and sprain of joints and ligaments at wrist and hand 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.