S86.021A — Laceration of right Achilles tendon, initial encounter
Is S86.021A billable?
Yes — S86.021A is billable for FY2027. S86.021A is a valid, billable ICD-10-CM code at the highest level of specificity in its branch. S86.021A may be submitted for encounters from October 1, 2026 through September 30, 2027.
S86.021A at a glance
| Code | S86.021A |
|---|---|
| Description | Laceration of right Achilles tendon, initial encounter |
| Billable | Yes |
| Code set | ICD-10-CM FY2027 |
| Valid for encounters | October 1, 2026 – September 30, 2027 |
| 7th character "A" | initial encounter |
What does the 7th character "A" mean in S86.021A?
In S86.021A, the 7th character A means initial encounter. The 7th character is required for S86.021A to be a valid, complete code.
Same condition, different episode of care — switch the 7th character:
Which MS-DRGs does S86.021A group to?
S86.021A 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, S86.021A is a complication or comorbidity (CC), which can move a stay into a higher-paying DRG.
How is S86.021A listed in the Alphabetic Index?
The Alphabetic Index lists these routes under S86.02, the nearest indexed parent of S86.021A. Use them to find the family, then select the specific code.
- Laceration › Achilles tendon
- Injury › Achilles tendon › laceration
- Laceration › tendon › Achilles
Use additional code — inherited from Chapter 19
Report an additional code alongside S86.021A to fully describe the condition. S86.021A 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 S86.021A, but a patient may have both at the same time. When documentation supports it, S86.021A and the excluded code may both be reported.
Excludes2 — not included here — inherited from S80-S89
The conditions below are not part of S86.021A, but a patient may have both at the same time. When documentation supports it, S86.021A and the excluded code may both be reported.
Excludes2 — not included here — inherited from S86
The conditions below are not part of S86.021A, but a patient may have both at the same time. When documentation supports it, S86.021A and the excluded code may both be reported.
Code also — inherited from S86
Two codes may be needed to describe the condition fully. Whether S86.021A is sequenced first depends on the reason for the encounter.
- any associated open wound (S81.-)
How long has S86.021A existed?
S86.021A 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.