S62.121K — Displaced fracture of lunate [semilunar], right wrist, subsequent encounter for fracture with nonunion
Is S62.121K billable?
Yes — S62.121K is billable for FY2027. S62.121K is a valid, billable ICD-10-CM code at the highest level of specificity in its branch. S62.121K may be submitted for encounters from October 1, 2026 through September 30, 2027.
S62.121K at a glance
| Code | S62.121K |
|---|---|
| Description | Displaced fracture of lunate [semilunar], right wrist, 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 S62.121K?
In S62.121K, the 7th character K means subsequent encounter for fracture with nonunion. The 7th character is required for S62.121K to be a valid, complete code.
Same condition, different episode of care — switch the 7th character:
- Ainitial encounter for closed fractureS62.121A
- Binitial encounter for open fractureS62.121B
- Dsubsequent encounter for fracture with routine healingS62.121D
- Gsubsequent encounter for fracture with delayed healingS62.121G
- Ksubsequent encounter for fracture with nonunionS62.121K
- Psubsequent encounter for fracture with malunionS62.121P
- SsequelaS62.121S
Which MS-DRGs does S62.121K group to?
S62.121K 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, S62.121K is a complication or comorbidity (CC), which can move a stay into a higher-paying DRG.
How is S62.121K listed in the Alphabetic Index?
The Alphabetic Index lists these routes under S62.12, the nearest indexed parent of S62.121K. Use them to find the family, then select the specific code.
- Fracture, traumatic › carpal bone › lunate (abduction) (adduction) (separation)
- Fracture, traumatic › carpal bone › lunate › nondisplaced (abduction) (adduction) (separation)
Excludes1 — never code together — inherited from S62
The conditions below can never be reported together with S62.121K 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 wrist and hand (S68.-)
Use additional code — inherited from Chapter 19
Report an additional code alongside S62.121K to fully describe the condition. S62.121K 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 S62.121K, but a patient may have both at the same time. When documentation supports it, S62.121K and the excluded code may both be reported.
Excludes2 — not included here — inherited from S60-S69
The conditions below are not part of S62.121K, but a patient may have both at the same time. When documentation supports it, S62.121K and the excluded code may both be reported.
Excludes2 — not included here — inherited from S62
The conditions below are not part of S62.121K, but a patient may have both at the same time. When documentation supports it, S62.121K and the excluded code may both be reported.
- fracture of distal parts of ulna and radius (S52.-)
Excludes2 — not included here — inherited from S62.1
The conditions below are not part of S62.121K, but a patient may have both at the same time. When documentation supports it, S62.121K and the excluded code may both be reported.
- fracture of scaphoid of wrist (S62.0-)
How long has S62.121K existed?
S62.121K 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.