ICD-10 J04.2
Billable / SpecificAcute laryngotracheitis
About ICD-10-CM J04.2
ICD-10-CM code J04.2 represents Acute laryngotracheitis. This is a billable/specific code in the Respiratory System chapter (block J04). The 2026 edition of ICD-10-CM J04.2 became effective on October 1, 2025.
Inclusion Terms / Approximate Synonyms
Clinical terms and conditions classified under J04.2. Per CMS ICD-10-CM Tabular 2026.
- Laryngotracheitis NOS
- Tracheitis (acute) with laryngitis (acute)
Type 1 Excludes
Pure excludes, these codes can never be coded together with J04.2. The conditions are mutually exclusive (e.g., congenital vs acquired forms).
- acute obstructive laryngotracheitis (J05.0)
Type 2 Excludes
Not included here, the excluded code is not part of J04.2, but a patient may have both conditions at the same time. Both codes may be coded together when applicable.
- chronic laryngotracheitis (J37.1)
Medicare LCD Coverage for J04.2
Local Coverage Determinations (LCDs) from CMS MACs that list J04.2 as a covered diagnosis.
Showing top 10 of 139 total . Click a CPT for full coverage scope.
Commercial Payer Coverage
Coverage policies from major commercial payers referencing J04.2.
5 Medicare
CPT Codes Commonly Billed with J04.2
Procedures frequently paired with this diagnosis based on PayerReady's Dx↔Px linkage data.
We don't have CPT pairings indexed for this specific code yet. Use the CPT search above to find common procedures, or check your payer's published medical policy for code-specific guidance.
Convert J04.2 to ICD-9-CM
Per CMS General Equivalence Mappings (GEMs), useful for legacy data review and historical claim analysis.
| ICD-10 | ICD-9 | Mapping Flags |
|---|---|---|
| J04.2 | 46420 | 00000 |
Flags format (5 digits): Approximate · No Map · Combination · Scenario · Choice List. Source: CMS 2017 GEMs (final version).
Codes Adjacent To J04.2
Other codes in section J00-J06 (Acute upper respiratory infections).
ICD-10 J04.2, Billing FAQ
Is ICD-10 code J04.2 billable? +
Yes, J04.2 is a billable ICD-10-CM code that can appear as a primary or secondary diagnosis on claims.
What other names or terms map to J04.2? +
ICD-10 J04.2 includes: Laryngotracheitis NOS; Tracheitis (acute) with laryngitis (acute).
What codes are Type 1 Excludes for J04.2? +
Type 1 Excludes (never code together with J04.2): acute obstructive laryngotracheitis (J05.0)
What codes are Type 2 Excludes for J04.2? +
Type 2 Excludes (may be coded together when both conditions exist): chronic laryngotracheitis (J37.1)
What ICD-9 codes does J04.2 map to? +
Per CMS GEMs, J04.2 maps to ICD-9 codes: 46420. Useful for legacy data review and historical claim analysis.
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Reviewed by the PayerReady Medical Coding Team
Verified against the CMS 2026 code set on June 1, 2026.
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