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S55.909ABillableSave

S55.909A - Unspecified injury of unspecified blood vessel at forearm level, unspecified arm, initial encounter

ICD-10-CM Chapter 19: Injury, poisoning and certain other consequences of external causes · S50-S59 Injuries to the elbow and forearm (S50-S59) · Subcategory of S55.909 · FY2027

7th character A: initial encounter

Coding Guidance

7th character A: initial encounter.

Includes, Excludes and Coding Notes

Excludes 2 — Not Included HereFrom S55

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

  • injury of blood vessels at wrist and hand level (S65.-)
  • injury of brachial vessels (S45.1-S45.2)
Code AlsoFrom S55

Report an additional code when both conditions apply.

  • any associated open wound (S51.-)
Excludes 2 — Not Included HereFrom S50-S59 Injuries to the elbow and forearm (S50-S59)

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

  • burns and corrosions (T20-T32)
  • frostbite (T33-T34)
  • injuries of wrist and hand (S60-S69)
  • 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.