S82.309N

S82.309N: Unspecified fracture of lower end of unspecified tibia, subsequent encounter for open fracture type IIIA, IIIB, or IIIC with nonunion

Billable / specific codeICD-10-CMPOA exempt

S82.309N is a billable, specific ICD-10-CM code for unspecified fracture of lower end of unspecified tibia, subsequent encounter for open fracture type iiia, iiib, or iiic with nonunion. It is valid for submission on a claim.

Check S82.309N with the rest of the claim: free scrubber

7th character "N": subsequent encounter for open fracture type IIIA, IIIB, or IIIC with nonunion

The appropriate 7th character is to be added to all codes from category S82

A: initial encounter for closed fracture
B: initial encounter for open fracture type I or II
C: initial encounter for open fracture type IIIA, IIIB, or IIIC
D: subsequent encounter for closed fracture with routine healing
E: subsequent encounter for open fracture type I or II with routine healing
F: subsequent encounter for open fracture type IIIA, IIIB, or IIIC with routine healing
G: subsequent encounter for closed fracture with delayed healing
H: subsequent encounter for open fracture type I or II with delayed healing
J: subsequent encounter for open fracture type IIIA, IIIB, or IIIC with delayed healing
K: subsequent encounter for closed fracture with nonunion
M: subsequent encounter for open fracture type I or II with nonunion
N: subsequent encounter for open fracture type IIIA, IIIB, or IIIC with nonunion
P: subsequent encounter for closed fracture with malunion
Q: subsequent encounter for open fracture type I or II with malunion
R: subsequent encounter for open fracture type IIIA, IIIB, or IIIC with malunion
S: sequela

Excludes1 inherited from the categories above S82.309N

A category’s note binds every code beneath it.

Written on S82.3: Fracture of lower end of tibia

bimalleolar fracture of lower leg (S82.84-)
fracture of medial malleolus alone (S82.5-)
Maisonneuve's fracture (S82.86-)
pilon fracture of distal tibia (S82.87-)
trimalleolar fractures of lower leg (S82.85-)

Written on S82: Fracture of lower leg, including ankle

traumatic amputation of lower leg (S88.-)

Excludes2 inherited from the categories above S82.309N

Not part of this code, but both may be coded when both are present.

Written on S82: Fracture of lower leg, including ankle

fracture of foot, except ankle (S92.-)
periprosthetic fracture around internal prosthetic ankle joint (M97.2)
periprosthetic fracture around internal prosthetic implant of knee joint (M97.1-)

Other codes that can never be billed with S82.309N

Their own Excludes1 notes name this code, so the conflict is not listed above.

M84.3Stress fracture
M84.4Pathological fracture, not elsewhere classified
S81Open wound of knee and lower leg

Risk adjustment

No CMS-HCC V28 category: this code does not change a RAF score.

Code history

Unchanged in every release from FY2024 to FY2027.