S06.331A — Contusion and laceration of cerebrum, unspecified, with loss of consciousness of 30 minutes or less, initial encounter
Is S06.331A billable?
Yes, but S06.331A is an unspecified code. S06.331A is a valid, billable ICD-10-CM code for encounters from October 1, 2026 through September 30, 2027. However, S06.331A is an unspecified or catch-all code. Payers apply additional scrutiny to unspecified codes and many deny them when the medical record supports a more specific option, so check the documentation before selecting S06.331A — the more specific alternatives are listed below.
More specific alternatives
- S06.310AContusion and laceration of right cerebrum without loss of consciousness, initial encounter
- S06.320AContusion and laceration of left cerebrum without loss of consciousness, initial encounter
- S06.340ATraumatic hemorrhage of right cerebrum without loss of consciousness, initial encounter
- S06.350ATraumatic hemorrhage of left cerebrum without loss of consciousness, initial encounter
- S06.370AContusion, laceration, and hemorrhage of cerebellum without loss of consciousness, initial encounter
- S06.380AContusion, laceration, and hemorrhage of brainstem without loss of consciousness, initial encounter
S06.331A at a glance
| Code | S06.331A |
|---|---|
| Description | Contusion and laceration of cerebrum, unspecified, with loss of consciousness of 30 minutes or less, 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 S06.331A?
In S06.331A, the 7th character A means initial encounter. The 7th character is required for S06.331A to be a valid, complete code.
Same condition, different episode of care — switch the 7th character:
Which MS-DRGs does S06.331A group to?
S06.331A sits in MDC 01 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.
- 023Craniotomy with Major Device Implant or Acute Complex CNS Principal Diagnosis with MCC or Antineoplastic Implant or Epilepsy with Neurostimulatorsurgical
- 024Craniotomy with Major Device Implant or Acute Complex CNS Principal Diagnosis without MCCsurgical
As a secondary diagnosis, S06.331A is a major complication or comorbidity (MCC), which can move a stay into a higher-paying DRG. It also carries Hospital-Acquired Condition category 05.
How is S06.331A listed in the Alphabetic Index?
The Alphabetic Index lists these routes under S06.33, the nearest indexed parent of S06.331A. Use them to find the family, then select the specific code.
- Contusion › cerebral (skin surface intact)
- Laceration › cerebral
Inclusion terms
Alternative wording in documentation that is classified to S06.331A.
- Contusion and laceration of cerebrum, unspecified, with brief loss of consciousness
Excludes1 — never code together — inherited from S06
The conditions below can never be reported together with S06.331A on the same claim. An Excludes1 note means the two conditions cannot occur in the same patient, so reporting both is a coding error.
- head injury NOS (S09.90)
Use additional code — inherited from Chapter 19
Report an additional code alongside S06.331A to fully describe the condition. S06.331A is sequenced first.
- code to identify any retained foreign body, if applicable (Z18.-)
Use additional code — inherited from S06
Report an additional code alongside S06.331A to fully describe the condition. S06.331A is sequenced first.
- code, if applicable, to identify mild neurocognitive disorders due to known physiological condition (F06.7-)
Use additional code — inherited from S06.3
Report an additional code alongside S06.331A to fully describe the condition. S06.331A is sequenced first.
- code, if applicable, for traumatic brain compression or herniation (S06.A-)
Excludes2 — not included here — inherited from Chapter 19
The conditions below are not part of S06.331A, but a patient may have both at the same time. When documentation supports it, S06.331A and the excluded code may both be reported.
Excludes2 — not included here — inherited from S00-S09
The conditions below are not part of S06.331A, but a patient may have both at the same time. When documentation supports it, S06.331A and the excluded code may both be reported.
- burns and corrosions (T20-T32)
- effects of foreign body in ear (T16)
- effects of foreign body in larynx (T17.3)
- effects of foreign body in mouth NOS (T18.0)
- effects of foreign body in nose (T17.0-T17.1)
- effects of foreign body in pharynx (T17.2)
- effects of foreign body on external eye (T15.-)
- frostbite (T33-T34)
- insect bite or sting, venomous (T63.4)
Excludes2 — not included here — inherited from S06.3
The conditions below are not part of S06.331A, but a patient may have both at the same time. When documentation supports it, S06.331A and the excluded code may both be reported.
Code also — inherited from S00-S09
Two codes may be needed to describe the condition fully. Whether S06.331A is sequenced first depends on the reason for the encounter.
- for any associated infection
Code also — inherited from S06
Two codes may be needed to describe the condition fully. Whether S06.331A is sequenced first depends on the reason for the encounter.
How long has S06.331A existed?
S06.331A 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.