S93.521A — Sprain of metatarsophalangeal joint of right great toe, initial encounter
Is S93.521A billable?
Yes — S93.521A is billable for FY2027. S93.521A is a valid, billable ICD-10-CM code at the highest level of specificity in its branch. S93.521A may be submitted for encounters from October 1, 2026 through September 30, 2027.
S93.521A at a glance
| Code | S93.521A |
|---|---|
| Description | Sprain of metatarsophalangeal joint of right great toe, 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 S93.521A?
In S93.521A, the 7th character A means initial encounter. The 7th character is required for S93.521A to be a valid, complete code.
Same condition, different episode of care — switch the 7th character:
Which MS-DRGs does S93.521A group to?
S93.521A sits in MDC 08 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.
- 562Fracture, Sprain, Strain and Dislocation Except Femur, Hip, Pelvis and Thigh with MCCmedical
- 563Fracture, Sprain, Strain and Dislocation Except Femur, Hip, Pelvis and Thigh without MCCmedical
How is S93.521A listed in the Alphabetic Index?
The Alphabetic Index lists these routes under S93.52, the nearest indexed parent of S93.521A. Use them to find the family, then select the specific code.
- Sprain › toe › metatarsophalangeal joint (joint) (ligament)
- Sprain › toe › metatarsophalangeal joint › great (joint) (ligament)
- Sprain › toe › metatarsophalangeal joint › lesser (joint) (ligament)
Use additional code — inherited from Chapter 19
Report an additional code alongside S93.521A to fully describe the condition. S93.521A 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 S93.521A, but a patient may have both at the same time. When documentation supports it, S93.521A and the excluded code may both be reported.
Excludes2 — not included here — inherited from S90-S99
The conditions below are not part of S93.521A, but a patient may have both at the same time. When documentation supports it, S93.521A and the excluded code may both be reported.
Excludes2 — not included here — inherited from S93
The conditions below are not part of S93.521A, but a patient may have both at the same time. When documentation supports it, S93.521A and the excluded code may both be reported.
- strain of muscle and tendon of ankle and foot (S96.-)
Code also — inherited from S93
Two codes may be needed to describe the condition fully. Whether S93.521A is sequenced first depends on the reason for the encounter.
- any associated open wound
How long has S93.521A existed?
S93.521A 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.