S56.521D — Laceration of other extensor muscle, fascia and tendon at forearm level, right arm, subsequent encounter
Is S56.521D billable?
Yes — S56.521D is billable for FY2027. S56.521D is a valid, billable ICD-10-CM code at the highest level of specificity in its branch. S56.521D may be submitted for encounters from October 1, 2026 through September 30, 2027.
S56.521D at a glance
| Code | S56.521D |
|---|---|
| Description | Laceration of other extensor muscle, fascia and tendon at forearm level, right arm, subsequent encounter |
| Billable | Yes |
| Code set | ICD-10-CM FY2027 |
| Valid for encounters | October 1, 2026 – September 30, 2027 |
| 7th character "D" | subsequent encounter |
What does the 7th character "D" mean in S56.521D?
In S56.521D, the 7th character D means subsequent encounter. The 7th character is required for S56.521D to be a valid, complete code.
Same condition, different episode of care — switch the 7th character:
Which MS-DRGs does S56.521D group to?
S56.521D sits in MDC 23 and helps define the logic of 2 MS-DRGs (version 44, FY2027). Which one a stay actually groups to also depends on procedures and secondary diagnoses.
- 949Aftercare with CC/MCCmedical
- 950Aftercare without CC/MCCmedical
How is S56.521D listed in the Alphabetic Index?
The Alphabetic Index lists these routes under S56.52, the nearest indexed parent of S56.521D. Use them to find the family, then select the specific code.
- Injury › muscle › forearm › extensor › laceration
Use additional code — inherited from Chapter 19
Report an additional code alongside S56.521D to fully describe the condition. S56.521D 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 S56.521D, but a patient may have both at the same time. When documentation supports it, S56.521D and the excluded code may both be reported.
Excludes2 — not included here — inherited from S50-S59
The conditions below are not part of S56.521D, but a patient may have both at the same time. When documentation supports it, S56.521D and the excluded code may both be reported.
Excludes2 — not included here — inherited from S56
The conditions below are not part of S56.521D, but a patient may have both at the same time. When documentation supports it, S56.521D and the excluded code may both be reported.
Code also — inherited from S56
Two codes may be needed to describe the condition fully. Whether S56.521D is sequenced first depends on the reason for the encounter.
- any associated open wound (S51.-)
How long has S56.521D existed?
S56.521D 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.