S82.491M — Other fracture of shaft of right fibula, subsequent encounter for open fracture type I or II with nonunion

BillableCC

Is S82.491M billable?

Yes — S82.491M is billable for FY2027. S82.491M is a valid, billable ICD-10-CM code at the highest level of specificity in its branch. S82.491M may be submitted for encounters from October 1, 2026 through September 30, 2027.

S82.491M at a glance

Code	S82.491M
Description	Other fracture of shaft of right fibula, subsequent encounter for open fracture type I or II with nonunion
Billable	Yes
Code set	ICD-10-CM FY2027
Valid for encounters	October 1, 2026 – September 30, 2027
7th character "M"	subsequent encounter for open fracture type I or II with nonunion

What does the 7th character "M" mean in S82.491M?

In S82.491M, the 7th character M means subsequent encounter for open fracture type I or II with nonunion. The 7th character is required for S82.491M to be a valid, complete code.

Same condition, different episode of care — switch the 7th character:

Which MS-DRGs does S82.491M group to?

S82.491M sits in MDC 08 and helps define the logic of 3 MS-DRGs (version 44, FY2027). Which one a stay actually groups to also depends on procedures and secondary diagnoses.

564Other Musculoskeletal System and Connective Tissue Diagnoses with MCCmedical
565Other Musculoskeletal System and Connective Tissue Diagnoses with CCmedical
566Other Musculoskeletal System and Connective Tissue Diagnoses without CC/MCCmedical

As a secondary diagnosis, S82.491M is a complication or comorbidity (CC), which can move a stay into a higher-paying DRG.

How is S82.491M listed in the Alphabetic Index?

The Alphabetic Index lists these routes under S82.49, the nearest indexed parent of S82.491M. Use them to find the family, then select the specific code.

Fracture, traumatic › fibula › specified NEC (abduction) (adduction) (separation)

Excludes1 — never code together — inherited from S82

The conditions below can never be reported together with S82.491M on the same claim. An Excludes1 note means the two conditions cannot occur in the same patient, so reporting both is a coding error.

traumatic amputation of lower leg (S88.-)

Use additional code — inherited from Chapter 19

Report an additional code alongside S82.491M to fully describe the condition. S82.491M is sequenced first.

code to identify any retained foreign body, if applicable (Z18.-)

Excludes2 — not included here — inherited from Chapter 19

The conditions below are not part of S82.491M, but a patient may have both at the same time. When documentation supports it, S82.491M and the excluded code may both be reported.

birth trauma (P10-P15)
obstetric trauma (O70-O71)

Excludes2 — not included here — inherited from S80-S89

The conditions below are not part of S82.491M, but a patient may have both at the same time. When documentation supports it, S82.491M and the excluded code may both be reported.

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)

Excludes2 — not included here — inherited from S82

The conditions below are not part of S82.491M, but a patient may have both at the same time. When documentation supports it, S82.491M and the excluded code may both be reported.

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-)

Excludes2 — not included here — inherited from S82.4

The conditions below are not part of S82.491M, but a patient may have both at the same time. When documentation supports it, S82.491M and the excluded code may both be reported.

fracture of lateral malleolus alone (S82.6-)

How long has S82.491M existed?

S82.491M has been in ICD-10-CM since at least FY2016, the earliest fiscal year on record here.

Derived from the official order files for FY2016–FY2026. FY2017 and FY2020 publish no order file, so those years are not covered.