S63.64 Sprain of metacarpophalangeal joint of thumb

Non-billable header with 3 child codes.

Applies from 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

7th character required

• A — initial encounter
• D — subsequent encounter
• S — sequela

Applies from S63.6 Other and unspecified sprain of finger(s)

Excludes1 (never code together)

• traumatic rupture of ligament of finger at metacarpophalangeal and interphalangeal joint(s) (S63.4-)

Codes under S63.64

• S63.641 Sprain of metacarpophalangeal joint of right thumb
• S63.642 Sprain of metacarpophalangeal joint of left thumb
• S63.649 Sprain of metacarpophalangeal joint of unspecified thumb

Code annotations containing back-references to S63.64

Back-references to S63

• Type 2 Excludes: S66 Injury of muscle, fascia and tendon at wrist and hand level ("sprain of joints and ligaments of wrist and hand (S63.-)")

Diagnosis Index entries for S63.64

• Sprain (joint) (ligament) › thumb › metacarpophalangeal (joint)

Nearby codes

• S63.638S Sprain of interphalangeal joint of other finger, sequela
• S63.639 Sprain of interphalangeal joint of unspecified finger
• S63.639A Sprain of interphalangeal joint of unspecified finger, initial encounter
• S63.639D Sprain of interphalangeal joint of unspecified finger, subsequent encounter
• S63.639S Sprain of interphalangeal joint of unspecified finger, sequela
• S63.64 Sprain of metacarpophalangeal joint of thumb (this code)
• S63.641 Sprain of metacarpophalangeal joint of right thumb
• S63.641A Sprain of metacarpophalangeal joint of right thumb, initial encounter
• S63.641D Sprain of metacarpophalangeal joint of right thumb, subsequent encounter
• S63.641S Sprain of metacarpophalangeal joint of right thumb, sequela
• S63.642 Sprain of metacarpophalangeal joint of left thumb