What does ICD-10 code J05 mean?

ICD-10 code J05 is the standardized code used for acute obstructive laryngitis [croup] and epiglottitis in medical records and coding systems.

When is ICD-10 code J05 used?

Doctors, hospitals, and insurers may use ICD-10 code J05 when recording acute obstructive laryngitis [croup] and epiglottitis in a standardized format. This entry may also act as a broader category that points toward more specific child codes.

Does ICD-10 code J05 confirm a diagnosis?

No. A code helps standardize documentation and claims, but it should not be read as a substitute for a clinician's full assessment.

ICD10

ICD-10 Code J05: Acute obstructive laryngitis [croup] and epiglottitis

Name: ICD-10 Code J05: Acute obstructive laryngitis [croup] and epiglottitis
Creator: HealthAssure Clinical Team
Published: 2026-05-21T06:14:35.878Z

J05 is an ICD-10 diagnosis entry used to group records related to Acute obstructive laryngitis [croup] and epiglottitis. You may see this entry in coding references, medical records, or claims workflows when a broader diagnosis category is being reviewed before a more specific code is chosen. ICD-10 entries help standardize how diagnoses are organized for coding, reporting, analytics, and documentation. This code sits within the broader ICD-10 area for Diseases of the respiratory system (J00-J99).

Reviewed by HealthAssure Clinical TeamUpdated 21 May 2026

What is this code?

ICD-10 entries help standardize how diagnoses are organized for coding, reporting, analytics, and documentation. This code sits within the broader ICD-10 area for Diseases of the respiratory system (J00-J99).

When is it used?

May be used when a clinician documents acute obstructive laryngitis [croup] and epiglottitis in a patient's medical record.
May appear in hospital records, claims, referrals, and clinical documentation.
This code may act more like a grouping or parent code, so a more specific child code may be used in final documentation when available.

What it does not mean

A code alone does not explain severity, treatment plan, or outcome.
A medical code should not be treated as a substitute for a doctor's diagnosis or advice.
This entry may represent a broader category rather than the most specific billable code.

Code hierarchy

chapter

10Diseases of the respiratory system (J00-J99)

block

J00-J06Acute upper respiratory infections

currentJ00-J06

Official coding notes

Applicable to

code (B95-B97) to identify infectious agent.

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)

Where you may see this code

You may see this entry in coding references, medical records, or claims workflows when a broader diagnosis category is being reviewed before a more specific code is chosen.

Related specialists

PulmonologistGeneral Physician

Sibling codes

J00Acute nasopharyngitis [common cold]billable J01Acute sinusitis J02Acute pharyngitis J03Acute tonsillitis J04Acute laryngitis and tracheitis J06Acute upper respiratory infections of multiple and unspecified sites

Coding guidelines

Compatibility

Legacy code aligns to an official FY 2026 category. Frontend should resolve to the official category page and surface the billable child codes.

Legacy codes

J05

Replacement codes

J05.0 — Acute obstructive laryngitis [croup]

Common synonyms

Acute obstructive laryngitis [croup] and epiglottitis

Frequently asked questions

About this content

This page is prepared by HealthAssure's clinical team using official coding standards from ICD-10. AI tools assist with drafting explanations, which are then reviewed and verified by healthcare professionals for accuracy. This content is for informational purposes and does not replace professional medical advice. Meet our team.