S13.4XXS — Sprain of ligaments of cervical spine, sequela
Is S13.4XXS billable?
Yes — S13.4XXS is billable for FY2027. S13.4XXS is a valid, billable ICD-10-CM code at the highest level of specificity in its branch. S13.4XXS may be submitted for encounters from October 1, 2026 through September 30, 2027.
S13.4XXS at a glance
| Code | S13.4XXS |
|---|---|
| Description | Sprain of ligaments of cervical spine, sequela |
| Billable | Yes |
| Code set | ICD-10-CM FY2027 |
| Valid for encounters | October 1, 2026 – September 30, 2027 |
| 7th character "S" | sequela |
What does the 7th character "S" mean in S13.4XXS?
In S13.4XXS, the 7th character S means sequela. The 7th character is required for S13.4XXS to be a valid, complete code.
Same condition, different episode of care — switch the 7th character:
Which MS-DRGs does S13.4XXS group to?
S13.4XXS 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 S13.4XXS listed in the Alphabetic Index?
The Alphabetic Index lists these routes under S13.4, the nearest indexed parent of S13.4XXS. Use them to find the family, then select the specific code.
- Whiplash injury
- Injury › whiplash
- Sprain › anterior longitudinal, cervical (joint) (ligament)
- Sprain › atlas, atlanto-axial, atlanto-occipital (joint) (ligament)
- Sprain › cervical, cervicodorsal, cervicothoracic (joint) (ligament)
- Syndrome › whiplash
- Torticollis › traumatic, current (intermittent) (spastic)
- Sprain › neck › anterior longitudinal cervical ligament (joint) (ligament)
Inclusion terms
Alternative wording in documentation that is classified to S13.4XXS.
- Sprain of anterior longitudinal (ligament), cervical
- Sprain of atlanto-axial (joints)
- Sprain of atlanto-occipital (joints)
- Whiplash injury of cervical spine
Use additional code — inherited from Chapter 19
Report an additional code alongside S13.4XXS to fully describe the condition. S13.4XXS 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 S13.4XXS, but a patient may have both at the same time. When documentation supports it, S13.4XXS and the excluded code may both be reported.
Excludes2 — not included here — inherited from S10-S19
The conditions below are not part of S13.4XXS, but a patient may have both at the same time. When documentation supports it, S13.4XXS and the excluded code may both be reported.
Excludes2 — not included here — inherited from S13
The conditions below are not part of S13.4XXS, but a patient may have both at the same time. When documentation supports it, S13.4XXS 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 S13.4XXS is sequenced first depends on the reason for the encounter.
- any associated open wound
How long has S13.4XXS existed?
S13.4XXS 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.