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ICD-10-CM 2027 diagnosis code

J04.2Acute laryngotracheitis

✓ Billable / specific

J04.2 is a valid, billable ICD-10-CM code for acute laryngotracheitis. It can be reported on claims for dates of service from October 1, 2026 – September 30, 2027.

Looking up by condition? See ICD-10 code for Laryngotracheitis.

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 J04.2

J04.2 is the ICD-10-CM diagnosis code for acute laryngotracheitis. It belongs to category J04 (acute laryngitis and tracheitis), block J00-J06 (acute upper respiratory infections) and chapter 10 (diseases of the respiratory system). It is billable, so it can be reported on its own for dates of service from October 1, 2026 through September 30, 2027.

Within J04 (acute laryngitis and tracheitis), J04.2 is specifically for acute laryngotracheitis. Related codes cover acute laryngitis (J04.0), acute tracheitis (J04.1) and Supraglottitis, unspecified (J04.3).

Don't report J04.2 together with the conditions in its Excludes1 note: acute obstructive laryngotracheitis (J05.0).

The conditions in its Excludes2 note aren't part of J04.2, but may be coded alongside it if the patient has both: chronic laryngotracheitis (J37.1).

Use an additional code (B95-B97) to identify infectious agent.

It is not a CC or MCC, so as a secondary diagnosis it doesn't change the MS-DRG severity level.

In MS-DRG v44.0, it is part of the grouping logic for DRG 011 (Tracheostomy for Face, Mouth and Neck Diagnoses or Laryngectomy with MCC, relative weight 5.6154), DRG 012 (Tracheostomy for Face, Mouth and Neck Diagnoses or Laryngectomy with CC, relative weight 4.381), DRG 013 (Tracheostomy for Face, Mouth and Neck Diagnoses or Laryngectomy without CC/MCC, relative weight 2.7307), DRG 152 (Otitis Media and URI with MCC, relative weight 1.1151) and DRG 153 (Otitis Media and URI without MCC, relative weight 0.7421), in Pre-MDC and MDC 03 (Diseases and Disorders of the Ear, Nose, Mouth and Throat), 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 464.20 (acute laryngotracheitis without mention of obstruction).

Coding notes

Applicable toConditions and synonyms classified to this code
  • Laryngotracheitis NOS
  • Tracheitis (acute) with laryngitis (acute)
Excludes1Not coded here — never report together with this code
  • acute obstructive laryngotracheitis (J05.0)
Excludes2Not included here — may be reported together if both conditions exist
  • chronic laryngotracheitis (J37.1)

Notes that apply from higher levels

Instructions written at a parent level also apply to J04.2.

› From J04 Acute laryngitis and tracheitis
Excludes1
  • acute obstructive laryngitis [croup] and epiglottitis (J05.-)
Excludes2
  • laryngismus (stridulus) (J38.5)
Use additional code
  • code (B95-B97) to identify infectious agent.
Code also
  • influenza, if present, such as:
  • influenza due to identified novel influenza A virus with other respiratory manifestations (J09.X2)
  • influenza due to other identified influenza virus with other respiratory manifestations (J10.1)
  • influenza due to unidentified influenza virus with other respiratory manifestations (J11.1)

Broader instructions also apply from J00-J06 Acute upper respiratory infections and Chapter 10: Diseases of the respiratory system.

Alphabetic index entries

4 entries

Terms in the official ICD-10-CM index that lead to J04.2.

Codes whose notes reference J04.2

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 03 · Diseases and Disorders of the Ear, Nose, Mouth and Throat

ICD-9-CM equivalent

Converter →
  • 464.20Acute laryngotracheitis without mention of obstructionexact

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 J04.2

Is J04.2 billable?

Yes. J04.2 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).

Can J04.2 be used as a principal diagnosis?

Yes. The Medicare Code Editor doesn't restrict J04.2 as a principal diagnosis.

Is J04.2 a CC or MCC?

No. J04.2 is neither a CC nor an MCC under MS-DRG v44.0.

What DRG does J04.2 group to?

J04.2 is used in the MS-DRG v44.0 logic for MS-DRG 011 (Tracheostomy for Face, Mouth and Neck Diagnoses or Laryngectomy with MCC), MS-DRG 012 (Tracheostomy for Face, Mouth and Neck Diagnoses or Laryngectomy with CC), MS-DRG 013 (Tracheostomy for Face, Mouth and Neck Diagnoses or Laryngectomy without CC/MCC), MS-DRG 152 (Otitis Media and URI with MCC) and MS-DRG 153 (Otitis Media and URI without 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 J04.2?

The CMS General Equivalence Mappings map J04.2 to ICD-9-CM 464.20.