S79.191K — Other physeal fracture of lower end of right femur, subsequent encounter for fracture with nonunion
Is S79.191K billable?
Yes — S79.191K is billable for FY2027. S79.191K is a valid, billable ICD-10-CM code at the highest level of specificity in its branch. S79.191K may be submitted for encounters from October 1, 2026 through September 30, 2027.
S79.191K at a glance
| Code | S79.191K |
|---|---|
| Description | Other physeal fracture of lower end of right femur, subsequent encounter for fracture with nonunion |
| Billable | Yes |
| Code set | ICD-10-CM FY2027 |
| Valid for encounters | October 1, 2026 – September 30, 2027 |
| 7th character "K" | subsequent encounter for fracture with nonunion |
What does the 7th character "K" mean in S79.191K?
In S79.191K, the 7th character K means subsequent encounter for fracture with nonunion. The 7th character is required for S79.191K to be a valid, complete code.
Same condition, different episode of care — switch the 7th character:
- Ainitial encounter for closed fractureS79.191A
- Dsubsequent encounter for fracture with routine healingS79.191D
- Gsubsequent encounter for fracture with delayed healingS79.191G
- Ksubsequent encounter for fracture with nonunionS79.191K
- Psubsequent encounter for fracture with malunionS79.191P
- SsequelaS79.191S
Which MS-DRGs does S79.191K group to?
S79.191K 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, S79.191K is a complication or comorbidity (CC), which can move a stay into a higher-paying DRG.
How is S79.191K listed in the Alphabetic Index?
The Alphabetic Index lists these routes under S79.19, the nearest indexed parent of S79.191K. Use them to find the family, then select the specific code.
- Fracture, traumatic › femur, femoral › lower end › physeal › specified NEC (abduction) (adduction) (separation)
Use additional code — inherited from Chapter 19
Report an additional code alongside S79.191K to fully describe the condition. S79.191K 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 S79.191K, but a patient may have both at the same time. When documentation supports it, S79.191K and the excluded code may both be reported.
Excludes2 — not included here — inherited from S70-S79
The conditions below are not part of S79.191K, but a patient may have both at the same time. When documentation supports it, S79.191K and the excluded code may both be reported.
How long has S79.191K existed?
S79.191K 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.