S81.021A - Laceration with foreign body, right knee, initial encounter
ICD-10-CM Chapter 19: Injury, poisoning and certain other consequences of external causes · S80-S89 Injuries to the knee and lower leg (S80-S89) · Subcategory of S81.021 · FY2027
7th character A: initial encounter
Coding Guidance
7th character A: initial encounter.
Includes, Excludes and Coding Notes
Mutually exclusive: these conditions are never reported together with this code.
- open fracture of knee and lower leg (S82.-)
- traumatic amputation of lower leg (S88.-)
Not part of this code; report both codes when the patient has both conditions.
- open wound of ankle and foot (S91.-)
Report an additional code when both conditions apply.
- any associated wound infection
Not part of this code; report both codes when the patient has both conditions.
- burns and corrosions (T20-T32)
- frostbite (T33-T34)
- injuries of ankle and foot, except fracture of ankle and malleolus (S90-S99)
- insect bite or sting, venomous (T63.4)
Not part of this code; report both codes when the patient has both conditions.
- birth trauma (P10-P15)
- obstetric trauma (O70-O71)
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.-)
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.
Related condition guides
Documentation requirements, coding pitfalls and FAQs for conditions coded with S81.021A.
Codes at the same level as S81.021A