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ICD-10-CM 2027 diagnosis code

S22.32XBFracture of one rib, left side, initial encounter for open fracture

✓ Billable / specificRequires 7th characterMCC — major complication/comorbidity

S22.32XB is a valid, billable ICD-10-CM code for fracture of one rib, left 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: Fracture of one rib, left side, init for opn fx

Code unchanged since ICD-10-CM took effect on October 1, 2015. Source: official FY2027 ICD-10-CM release from CDC/NCHS and CMS. Page updated September 29, 2026. About our data

About S22.32XB

S22.32XB is the ICD-10-CM diagnosis code for fracture of one rib, left side, initial encounter for open fracture. It belongs to category S22 (fracture of rib(s), sternum and thoracic spine), block S20-S29 (injuries to the thorax) 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.

Code first: , if applicable, spinal cord injury (S24.0-, S24.1-).

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 183 (Major Chest Trauma with MCC, relative weight 1.4903), DRG 184 (Major Chest Trauma with CC, relative weight 1.0647), DRG 185 (Major Chest Trauma without CC/MCC, relative weight 0.7715), DRG 963 (Other Multiple Significant Trauma with MCC, relative weight 2.6363), DRG 964 (Other Multiple Significant Trauma with CC, relative weight 1.4972) and DRG 965 (Other Multiple Significant Trauma without CC/MCC, relative weight 1.0059), in MDC 04 (Diseases and Disorders of the Respiratory 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 has been part of ICD-10-CM since the code set took effect on October 1, 2015 and hasn't changed since.

Before ICD-10, this condition was coded in ICD-9-CM as 807.11 (open fracture of one rib).

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 S22.32:

Notes that apply from higher levels

Instructions written at a parent level also apply to S22.32XB.

› From S22 Fracture of rib(s), sternum and thoracic spine
Note
  • A fracture not indicated as displaced or nondisplaced should be coded to displaced
  • A fracture not indicated as open or closed should be coded to closed
Includes
  • fracture of thoracic neural arch
  • fracture of thoracic spinous process
  • fracture of thoracic transverse process
  • fracture of thoracic vertebra
  • fracture of thoracic vertebral arch
Excludes1
  • transection of thorax (S28.1)
Excludes2
Code first
Code also
  • , if applicable, any associated condition such as:
  • injury of intrathoracic organ (S27.-)
  • traumatic hemopneumothorax (S27.2)
  • traumatic hemothorax (S27.1-)
  • traumatic pneumothorax (S27.0)

Broader instructions also apply from S20-S29 Injuries to the thorax 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 →
  • 807.11Open fracture of one ribapproximate

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
  • FY2016 (effective 10/1/2015): Added (first year of ICD-10-CM)
  • No changes since FY2016.

Common questions about S22.32XB

Is S22.32XB billable?

Yes. S22.32XB 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 S22.32XB 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 S22.32XB be used as a principal diagnosis?

Yes. The Medicare Code Editor doesn't restrict S22.32XB as a principal diagnosis.

Is S22.32XB a CC or MCC?

S22.32XB is an MCC (major complication or comorbidity) under MS-DRG v44.0, unless excluded by the principal diagnosis.

What DRG does S22.32XB group to?

S22.32XB is used in the MS-DRG v44.0 logic for MS-DRG 183 (Major Chest Trauma with MCC), MS-DRG 184 (Major Chest Trauma with CC), MS-DRG 185 (Major Chest Trauma without CC/MCC), MS-DRG 963 (Other Multiple Significant Trauma with MCC), MS-DRG 964 (Other Multiple Significant Trauma with CC) and MS-DRG 965 (Other Multiple Significant Trauma without CC/MCC). 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 S22.32XB?

The CMS General Equivalence Mappings map S22.32XB to ICD-9-CM 807.11.