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S63.421Non-billableSave

S63.421 - Traumatic rupture of palmar ligament of left index finger at metacarpophalangeal and interphalangeal joint

ICD-10-CM Chapter 19: Injury, poisoning and certain other consequences of external causes · S60-S69 Injuries to the wrist, hand and fingers (S60-S69) · Subcategory of S63.42 · FY2027

Coding Guidance

S63.421 requires a 7th character. Report the code below that matches the documentation, for example A for initial encounter, D for subsequent encounter, S for sequela.

7th Character

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

Includes, Excludes and Coding Notes

IncludesFrom S63

Conditions this code covers.

  • 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
Excludes 2 — Not Included HereFrom S63

Not part of this code; report both codes when the patient has both conditions.

  • strain of muscle, fascia and tendon of wrist and hand (S66.-)
Code AlsoFrom S63

Report an additional code when both conditions apply.

  • any associated open wound
Excludes 2 — Not Included HereFrom S60-S69 Injuries to the wrist, hand and fingers (S60-S69)

Not part of this code; report both codes when the patient has both conditions.

  • burns and corrosions (T20-T32)
  • frostbite (T33-T34)
  • insect bite or sting, venomous (T63.4)
Excludes 2 — Not Included HereFrom Chapter S00-T88

Not part of this code; report both codes when the patient has both conditions.

  • birth trauma (P10-P15)
  • obstetric trauma (O70-O71)
Use Additional CodeFrom Chapter S00-T88

Add a secondary code to identify the associated condition or cause when it is documented.

  • code to identify any retained foreign body, if applicable (Z18.-)
NotesFrom Chapter S00-T88

Instructional notes from the ICD-10-CM tabular list.

  • Use secondary code(s) from Chapter 20, External causes of morbidity, to indicate cause of injury. Codes within the T section that include the external cause do not require an additional external cause code
  • The chapter uses the S-section for coding different types of injuries related to single body regions and the T-section to cover injuries to unspecified body regions as well as poisoning and certain other consequences of external causes.

More Specific Codes (3)

S63.421ATraumatic rupture of palmar ligament of left index finger at metacarpophalangeal and interphalangeal joint, initial encounter→S63.421DTraumatic rupture of palmar ligament of left index finger at metacarpophalangeal and interphalangeal joint, subsequent encounter→S63.421STraumatic rupture of palmar ligament of left index finger at metacarpophalangeal and interphalangeal joint, sequela→

Related condition guides

Documentation requirements, coding pitfalls and FAQs for conditions coded with S63.421.