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S82.021

Displaced longitudinal fracture of right patella

Not billable — category only FY2026 2025-10-01 → 2026-09-30
Exclusions 10 never code together
S82code
Excludes1
  • traumatic amputation of lower leg (S88.-)S88.-
Excludes2
  • fracture of foot, except ankle (S92.-)S92.-
  • periprosthetic fracture around internal prosthetic ankle joint (M97.2)M97.2
  • periprosthetic fracture around internal prosthetic implant of knee joint (M97.1-)M97.1-
S80-S89block
Excludes2
  • burns and corrosions (T20-T32)T20-T32
  • frostbite (T33-T34)T33-T34
  • injuries of ankle and foot, except fracture of ankle and malleolus (S90-S99)S90-S99
  • insect bite or sting, venomous (T63.4)T63.4
S00-T88chapter
Excludes2

Excludes1 — never code together. The excluded condition and this one are mutually exclusive.

Excludes2 — not included here, but the patient may have both. Code both when documented.

7th character 16
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
Instructional notes 8
S82.0code
Inclusion terms
  • Knee cap
S82code
Notes
  • A fracture not indicated as displaced or nondisplaced should be coded to displaced
  • A fracture not indicated as open or closed should be coded to closed
  • The open fracture designations are based on the Gustilo open fracture classification
Includes
  • fracture of malleolus
S00-T88chapter
Notes
  • 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.
Use additional code
  • code to identify any retained foreign body, if applicable (Z18.-)Z18.-
Index entries leading here 1
  • Fracture, traumatic (abduction) (adduction) (separation) T14.8
Alongside this code 5 same parent — S82.02
S82.022 Displaced longitudinal fracture of left patella category S82.023 Displaced longitudinal fracture of unspecified patella category S82.024 Nondisplaced longitudinal fracture of right patella category S82.025 Nondisplaced longitudinal fracture of left patella category S82.026 Nondisplaced longitudinal fracture of unspecified patella category
Subordinate codes 16
S82.021A Displaced longitudinal fracture of right patella, init S82.021B Displ longitud fx right patella, init for opn fx type I/2 S82.021C Displ longitud fx right patella, init for opn fx type 3A/B/C S82.021D Displ longitud fx r patella, subs for clos fx w routn heal S82.021E Displ longitud fx r patella, 7thE S82.021F Displ longitud fx r patella, 7thF S82.021G Displ longitud fx r patella, subs for clos fx w delay heal S82.021H Displ longitud fx r patella, 7thH S82.021J Displ longitud fx r patella, 7thJ S82.021K Displ longitud fx right patella, subs for clos fx w nonunion S82.021M Displ longitud fx r patella, 7thM S82.021N Displ longitud fx r patella, 7thN S82.021P Displ longitud fx right patella, subs for clos fx w malunion S82.021Q Displ longitud fx r patella, 7thQ S82.021R Displ longitud fx r patella, 7thR S82.021S Displaced longitudinal fracture of right patella, sequela
Additional references
AHA Coding Clinic® Licence required

Official coding advice for this code. Published by the American Hospital Association. Not included in this installation.

Risk adjustment

Maps to no condition category in any loaded model.

Presence is a property of the code. Untick a model to hide it everywhere.

This code

Billable
no
Code set
FY2026
Parent
S82.02
Block
S80-S89
Siblings
5
Subordinate
16

Present FY2024–FY2027.