S51.842A Puncture wound with foreign body of left forearm, initial encounter

Billable ICD-10-CM code, FY2026.

Built from S51.842 with 7th character A (initial encounter).

Applies from S51 Open wound of elbow and forearm

Excludes1 (never code together)

• open fracture of elbow and forearm (S52.- with open fracture 7th character)
• traumatic amputation of elbow and forearm (S58.-)

Excludes2 (not included here)

• open wound of wrist and hand (S61.-)

Code also

• any associated wound infection

7th character note

• The appropriate 7th character is to be added to each code from category S51

7th character required

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

Applies from S51.8 Open wound of forearm

Excludes2 (not included here)

• open wound of elbow (S51.0-)

Code annotations containing back-references to S51.842A

Back-references to S51.84

• Type 1 Excludes: S50.87 Other superficial bite of forearm ("open bite of forearm (S51.84)")

Back-references to S51

• Code Also: S54 Injury of nerves at forearm level ("any associated open wound (S51.-)")
• Code Also: S55 Injury of blood vessels at forearm level ("any associated open wound (S51.-)")
• Code Also: S56 Injury of muscle, fascia and tendon at forearm level ("any associated open wound (S51.-)")

Diagnosis Index entries for S51.842A

• Puncture › forearm › left › with › foreign body

Nearby codes

• S51.841 Puncture wound with foreign body of right forearm
• S51.841A Puncture wound with foreign body of right forearm, initial encounter
• S51.841D Puncture wound with foreign body of right forearm, subsequent encounter
• S51.841S Puncture wound with foreign body of right forearm, sequela
• S51.842 Puncture wound with foreign body of left forearm
• S51.842A Puncture wound with foreign body of left forearm, initial encounter (this code)
• S51.842D Puncture wound with foreign body of left forearm, subsequent encounter
• S51.842S Puncture wound with foreign body of left forearm, sequela
• S51.849 Puncture wound with foreign body of unspecified forearm
• S51.849A Puncture wound with foreign body of unspecified forearm, initial encounter
• S51.849D Puncture wound with foreign body of unspecified forearm, subsequent encounter