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842 External constriction, left lower leg

S80.849 External constriction, unspecified lower leg
S80.85 Superficial foreign body of lower leg
Splinter in the lower leg
S80.851 Superficial foreign body, right lower leg
S80.852 Superficial foreign body, left lower leg
S80.859 Superficial foreign body, unspecified lower leg
S80.86 Insect bite (nonvenomous) of lower leg
S80.861 Insect bite (nonvenomous), right lower leg
S80.862 Insect bite (nonvenomous), left lower leg
S80.869 Insect bite (nonvenomous), unspecified lower leg
S80.87 Other superficial bite of lower leg
Excludes1: open bite of lower leg (S81.85-)
S80.871 Other superficial bite, right lower leg
S80.872 Other superficial bite, left lower leg
S80.879 Other superficial bite, unspecified lower leg
S80.9 Unspecified superficial injury of knee and lower leg
S80.91 Unspecified superficial injury of knee
S80.911 Unspecified superficial injury of right knee
S80.912 Unspecified superficial injury of left knee
S80.919 Unspecified superficial injury of unspecified knee
S80.92 Unspecified superficial injury of lower leg
S80.921 Unspecified superficial injury of right lower leg
S80.922 Unspecified superficial injury of left lower leg
S80.929 Unspecified superficial injury of unspecified lower leg

S81 Open wound of knee and lower leg

Code also any associated wound infection
Excludes1: open fracture of knee and lower leg (S82.-)
traumatic amputation of lower leg (S88.-)
Excludes2: open wound of ankle and foot (S91.-)
The appropriate 7th character is to be added to each code from category S81
A initial encounter
D subsequent encounter
S sequela
S81.0 Open wound of knee
S81.00 Unspecified open wound of knee
S81.001 Unspecified open wound, right knee
S81.002 Unspecified open wound, left knee
S81.009 Unspecified open wound, unspecified knee
S81.01 Laceration without foreign body of knee
S81.