ICD-10-CM 2027 diagnosis code
S02.112BType III occipital condyle fracture, unspecified side, initial encounter for open fracture
S02.112B is a valid, billable ICD-10-CM code for type iii occipital condyle fracture, unspecified side, initial encounter for open fracture. It can be reported on claims for dates of service from October 1, 2026 – September 30, 2027.Short description: Type III occipital condyle fracture, unspecified side, 7thB
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 S02.112B
S02.112B is the ICD-10-CM diagnosis code for type III occipital condyle fracture, unspecified side, initial encounter for open 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 "B" means initial encounter for open fracture: use it while the patient is receiving active treatment for the condition.
As a secondary diagnosis it is an MCC (major complication or comorbidity), which can move an inpatient stay into the highest-paying "with MCC" 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 is an unspecified code for which a more specific option (often laterality) exists, and the Medicare Code Editor flags it for review on inpatient claims.
It has been part of ICD-10-CM since the code set took effect on October 1, 2015, and changed in FY2017 (title revised).
Before ICD-10, this condition was coded in ICD-9-CM as 801.50 (open fracture of base of skull without mention of intracranial injury, unspecified state of consciousness).
7th character
Binitial encounter for open 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 S02.112:
Notes that apply from higher levels
Instructions written at a parent level also apply to S02.112B.
› From S02 Fracture of skull and facial bones
- A fracture not indicated as open or closed should be coded to closed
- 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.
MDC 01 · Diseases and Disorders of the Nervous System
MDC 01 · Diseases and Disorders of the Nervous System
ICD-9-CM equivalent
Converter →- 801.50Open fracture of base of skull without mention of intracranial injury, unspecified state of consciousnessapproximate
From the CMS 2018 General Equivalence Mappings (GEMs), the final GEMs release.
Code history
- 2016
- 2017
- 2018
- 2019
- 2020
- 2021
- 2022
- 2023
- 2024
- 2025
- 2026
- 2027
- FY2016 (effective 10/1/2015): Added (first year of ICD-10-CM)
- FY2017 (effective 10/1/2016): Title revised — was “Type III occipital condyle fracture, initial encounter for open fracture”
Common questions about S02.112B
Is S02.112B billable?
- Yes. S02.112B is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).
What does the "B" at the end of S02.112B mean?
- It is the 7th character for initial encounter for open fracture. Per the official guidelines, use it while the patient is receiving active treatment for the condition.
Can S02.112B be used as a principal diagnosis?
- Yes. The Medicare Code Editor doesn't restrict S02.112B as a principal diagnosis.
Is S02.112B a CC or MCC?
- S02.112B is an MCC (major complication or comorbidity) under MS-DRG v44.0, unless excluded by the principal diagnosis.
What DRG does S02.112B group to?
- S02.112B 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 S02.112B?
- The CMS General Equivalence Mappings map S02.112B to ICD-9-CM 801.50.