S16.1XXA — Strain of muscle, fascia and tendon at neck level, initial encounter
Is S16.1XXA billable?
Yes — S16.1XXA is billable for FY2027. S16.1XXA is a valid, billable ICD-10-CM code at the highest level of specificity in its branch. S16.1XXA may be submitted for encounters from October 1, 2026 through September 30, 2027.
S16.1XXA at a glance
| Code | S16.1XXA |
|---|---|
| Description | Strain of muscle, fascia and tendon at neck level, 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 S16.1XXA?
In S16.1XXA, the 7th character A means initial encounter. The 7th character is required for S16.1XXA to be a valid, complete code.
Same condition, different episode of care — switch the 7th character:
Which MS-DRGs does S16.1XXA group to?
S16.1XXA 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.
- 551Medical Back Problems with MCCmedical
- 552Medical Back Problems without MCCmedical
How is S16.1XXA listed in the Alphabetic Index?
The Alphabetic Index lists these routes under S16.1, the nearest indexed parent of S16.1XXA. Use them to find the family, then select the specific code.
- Strain › cervical
- Strain › neck
- Injury › muscle › neck › strain
Use additional code — inherited from Chapter 19
Report an additional code alongside S16.1XXA to fully describe the condition. S16.1XXA 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 S16.1XXA, but a patient may have both at the same time. When documentation supports it, S16.1XXA and the excluded code may both be reported.
Excludes2 — not included here — inherited from S10-S19
The conditions below are not part of S16.1XXA, but a patient may have both at the same time. When documentation supports it, S16.1XXA and the excluded code may both be reported.
Excludes2 — not included here — inherited from S16
The conditions below are not part of S16.1XXA, but a patient may have both at the same time. When documentation supports it, S16.1XXA and the excluded code may both be reported.
- sprain of joint or ligament at neck level (S13.9)
Code also — inherited from S16
Two codes may be needed to describe the condition fully. Whether S16.1XXA is sequenced first depends on the reason for the encounter.
- any associated open wound (S11.-)
How long has S16.1XXA existed?
S16.1XXA 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.