S13.5XXA — Sprain of thyroid region, initial encounter
Is S13.5XXA billable?
Yes — S13.5XXA is billable for FY2027. S13.5XXA is a valid, billable ICD-10-CM code at the highest level of specificity in its branch. S13.5XXA may be submitted for encounters from October 1, 2026 through September 30, 2027.
S13.5XXA at a glance
| Code | S13.5XXA |
|---|---|
| Description | Sprain of thyroid region, 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 S13.5XXA?
In S13.5XXA, the 7th character A means initial encounter. The 7th character is required for S13.5XXA to be a valid, complete code.
Same condition, different episode of care — switch the 7th character:
Which MS-DRGs does S13.5XXA group to?
S13.5XXA 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
How is S13.5XXA listed in the Alphabetic Index?
The Alphabetic Index lists these routes under S13.5, the nearest indexed parent of S13.5XXA. Use them to find the family, then select the specific code.
- Sprain › cricoarytenoid articulation or ligament (joint) (ligament)
- Sprain › cricothyroid articulation (joint) (ligament)
- Sprain › thyroid cartilage or region (joint) (ligament)
- Sprain › cartilage › thyroid region (joint) (ligament)
- Sprain › neck › cricoarytenoid ligament (joint) (ligament)
- Sprain › neck › cricothyroid ligament (joint) (ligament)
- Sprain › neck › thyroid region (joint) (ligament)
Inclusion terms
Alternative wording in documentation that is classified to S13.5XXA.
- Sprain of cricoarytenoid (joint) (ligament)
- Sprain of cricothyroid (joint) (ligament)
- Sprain of thyroid cartilage
Use additional code — inherited from Chapter 19
Report an additional code alongside S13.5XXA to fully describe the condition. S13.5XXA 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 S13.5XXA, but a patient may have both at the same time. When documentation supports it, S13.5XXA and the excluded code may both be reported.
Excludes2 — not included here — inherited from S10-S19
The conditions below are not part of S13.5XXA, but a patient may have both at the same time. When documentation supports it, S13.5XXA and the excluded code may both be reported.
Excludes2 — not included here — inherited from S13
The conditions below are not part of S13.5XXA, but a patient may have both at the same time. When documentation supports it, S13.5XXA and the excluded code may both be reported.
- strain of muscle or tendon at neck level (S16.1)
Code also — inherited from S13
Two codes may be needed to describe the condition fully. Whether S13.5XXA is sequenced first depends on the reason for the encounter.
- any associated open wound
How long has S13.5XXA existed?
S13.5XXA 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.