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ICD-10-CM 2027 diagnosis code

S02.11BAType I occipital condyle fracture, left side, initial encounter for closed fracture

✓ Billable / specificRequires 7th characterCC — complication/comorbidity

S02.11BA is a valid, billable ICD-10-CM code for type i occipital condyle fracture, left side, initial encounter for closed fracture. It can be reported on claims for dates of service from October 1, 2026 – September 30, 2027.Short description: Type I occipital condyle fracture, left side, init

Code last changed in FY2017 (effective October 1, 2016). Source: official FY2027 ICD-10-CM release from CDC/NCHS and CMS. Page updated September 29, 2026. About our data

About S02.11BA

S02.11BA is the ICD-10-CM diagnosis code for type I occipital condyle fracture, left side, initial encounter for closed fracture. It belongs to category S02 (fracture of skull and facial bones), block S00-S09 (injuries to the head) and chapter 19 (injury, poisoning and certain other consequences of external causes). It is billable, so it can be reported on its own for dates of service from October 1, 2026 through September 30, 2027.

The 7th character "A" means initial encounter for closed fracture: use it while the patient is receiving active treatment for the condition.

As a secondary diagnosis it is a CC (complication or comorbidity), which can move an inpatient stay into the "with CC" MS-DRG of its family, unless the principal diagnosis excludes it.

In MS-DRG v44.0, it is part of the grouping logic for DRG 082 (Traumatic Stupor and Coma >1 Hour with MCC, relative weight 2.2928), DRG 083 (Traumatic Stupor and Coma >1 Hour with CC, relative weight 1.3831), DRG 084 (Traumatic Stupor and Coma >1 Hour without CC/MCC, relative weight 0.9605), DRG 085 (Traumatic Stupor and Coma <1 Hour with MCC, relative weight 2.245), DRG 086 (Traumatic Stupor and Coma <1 Hour with CC, relative weight 1.3067), DRG 087 (Traumatic Stupor and Coma <1 Hour without CC/MCC, relative weight 0.9223) and 3 more, in MDC 01 (Diseases and Disorders of the Nervous System) and MDC 24 (Multiple Significant Trauma), as a principal or secondary diagnosis. The DRG a claim lands in depends on the principal diagnosis, procedures and any CC/MCC secondary diagnoses.

It was added in FY2017, effective October 1, 2016.

Before ICD-10, this condition was coded in ICD-9-CM as 801.00 (closed fracture of base of skull without mention of intra cranial injury, unspecified state of consciousness).

7th character

Ainitial encounter for closed fracture

CC/MCC status for this injury by encounter: CC for A, K; MCC for B; Neither CC nor MCC for D, G, S.

Other encounter types for S02.11B:

Notes that apply from higher levels

Instructions written at a parent level also apply to S02.11BA.

› From S02.1 Fracture of base of skull
Excludes2
› From S02 Fracture of skull and facial bones
Note
  • A fracture not indicated as open or closed should be coded to closed
Code also
  • any associated intracranial injury (S06.-)

Broader instructions also apply from S00-S09 Injuries to the head and Chapter 19: Injury, poisoning and certain other consequences of external causes.

MS-DRG v44.0 grouping

All DRGs →

Inpatient MS-DRGs this diagnosis can group to, as the principal or a secondary diagnosis, depending on the rest of the claim.

ICD-9-CM equivalent

Converter →
  • 801.00Closed fracture of base of skull without mention of intra cranial injury, unspecified state of consciousnessapproximate

From the CMS 2018 General Equivalence Mappings (GEMs), the final GEMs release.

Code history

  1. 2016
  2. 2017
  3. 2018
  4. 2019
  5. 2020
  6. 2021
  7. 2022
  8. 2023
  9. 2024
  10. 2025
  11. 2026
  12. 2027
  • FY2017 (effective 10/1/2016): Added
  • No changes since FY2017.

Common questions about S02.11BA

Is S02.11BA billable?

Yes. S02.11BA is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).

What does the "A" at the end of S02.11BA mean?

It is the 7th character for initial encounter for closed fracture. Per the official guidelines, use it while the patient is receiving active treatment for the condition.

Can S02.11BA be used as a principal diagnosis?

Yes. The Medicare Code Editor doesn't restrict S02.11BA as a principal diagnosis.

Is S02.11BA a CC or MCC?

S02.11BA is a CC (complication or comorbidity) under MS-DRG v44.0, unless excluded by the principal diagnosis.

What DRG does S02.11BA group to?

S02.11BA is used in the MS-DRG v44.0 logic for MS-DRG 082 (Traumatic Stupor and Coma >1 Hour with MCC), MS-DRG 083 (Traumatic Stupor and Coma >1 Hour with CC), MS-DRG 084 (Traumatic Stupor and Coma >1 Hour without CC/MCC), MS-DRG 085 (Traumatic Stupor and Coma <1 Hour with MCC), MS-DRG 086 (Traumatic Stupor and Coma <1 Hour with CC), MS-DRG 087 (Traumatic Stupor and Coma <1 Hour without CC/MCC) and 3 more. Which one applies depends on whether it is the principal diagnosis and on the rest of the claim.

What is the ICD-9 code for S02.11BA?

The CMS General Equivalence Mappings map S02.11BA to ICD-9-CM 801.00.