S59.231K — Salter-Harris Type III physeal fracture of lower end of radius, right arm, subsequent encounter for fracture with nonunion
Is S59.231K billable?
Yes — S59.231K is billable for FY2027. S59.231K is a valid, billable ICD-10-CM code at the highest level of specificity in its branch. S59.231K may be submitted for encounters from October 1, 2026 through September 30, 2027.
S59.231K at a glance
| Code | S59.231K |
|---|---|
| Description | Salter-Harris Type III physeal fracture of lower end of radius, right arm, 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 S59.231K?
In S59.231K, the 7th character K means subsequent encounter for fracture with nonunion. The 7th character is required for S59.231K to be a valid, complete code.
Same condition, different episode of care — switch the 7th character:
- Ainitial encounter for closed fractureS59.231A
- Dsubsequent encounter for fracture with routine healingS59.231D
- Gsubsequent encounter for fracture with delayed healingS59.231G
- Ksubsequent encounter for fracture with nonunionS59.231K
- Psubsequent encounter for fracture with malunionS59.231P
- SsequelaS59.231S
Which MS-DRGs does S59.231K group to?
S59.231K 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, S59.231K is a complication or comorbidity (CC), which can move a stay into a higher-paying DRG.
How is S59.231K listed in the Alphabetic Index?
The Alphabetic Index lists these routes under S59.23, the nearest indexed parent of S59.231K. Use them to find the family, then select the specific code.
- Fracture, traumatic › radius › lower end › physeal › Salter-Harris › Type III (abduction) (adduction) (separation)
Use additional code — inherited from Chapter 19
Report an additional code alongside S59.231K to fully describe the condition. S59.231K 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 S59.231K, but a patient may have both at the same time. When documentation supports it, S59.231K and the excluded code may both be reported.
Excludes2 — not included here — inherited from S50-S59
The conditions below are not part of S59.231K, but a patient may have both at the same time. When documentation supports it, S59.231K and the excluded code may both be reported.
Excludes2 — not included here — inherited from S59
The conditions below are not part of S59.231K, but a patient may have both at the same time. When documentation supports it, S59.231K and the excluded code may both be reported.
- other and unspecified injuries of wrist and hand (S69.-)
How long has S59.231K existed?
S59.231K 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.