ICD10BillableValid for clinical use

ICD-10 Code J67.4: Maltworker's lung

J67.4 is a billable ICD-10 diagnosis code used to classify Maltworker's lung in medical records and claims. You may see this code in hospital records, discharge summaries, insurance claims, encounter documentation, referrals, or other healthcare billing and coding records. ICD-10 codes are diagnosis classification codes used in healthcare records, reporting, coding workflows, and billing support. This code sits within the broader ICD-10 area for Diseases of the respiratory system (J00-J99).

Reviewed by HealthAssure Clinical TeamUpdated 26 May 2026

What is this code?

ICD-10 codes are diagnosis classification codes used in healthcare records, reporting, coding workflows, and billing support. 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 maltworker's lung in a patient's medical record.
  • May appear in hospital records, claims, referrals, and clinical documentation.
  • This code can be used as a clinically usable diagnosis entry in standardized coding workflows.

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.

Code hierarchy

chapter
10Diseases of the respiratory system (J00-J99)
block
J60-J70Lung diseases due to external agents
category
J67Hypersensitivity pneumonitis due to organic dust
currentJ67

Official coding notes

Inclusion terms
  • Alveolitis due to Aspergillus clavatus

Where you may see this code

You may see this code in hospital records, discharge summaries, insurance claims, encounter documentation, referrals, or other healthcare billing and coding records.

Related specialists

PulmonologistGeneral Physician

Coverage-related procedures and services

CPT 94621high
CARDIOPULMONARY EXERCISE TESTING, INCLUDING MEASUREMENTS OF MINUTE VENTILATION, CO2 PRODUCTION, O2 UPTAKE, AND ELECTROCARDIOGRAPHIC RECORDINGS
Source: CMS coverage guidance
CPT 31720high
CATHETER ASPIRATION (SEPARATE PROCEDURE); NASOTRACHEAL
Source: CMS coverage guidance
CPT 94664high
DEMONSTRATION AND/OR EVALUATION OF PATIENT UTILIZATION OF AN AEROSOL GENERATOR, NEBULIZER, METERED DOSE INHALER OR IPPB DEVICE
Source: CMS coverage guidance
CPT 94617high
EXERCISE TEST FOR BRONCHOSPASM, INCLUDING PRE- AND POST-SPIROMETRY AND PULSE OXIMETRY; WITH ELECTROCARDIOGRAPHIC RECORDING(S)
Source: CMS coverage guidance
CPT 94619high
EXERCISE TEST FOR BRONCHOSPASM, INCLUDING PRE- AND POST-SPIROMETRY AND PULSE OXIMETRY; WITHOUT ELECTROCARDIOGRAPHIC RECORDING(S)
Source: CMS coverage guidance
CPT 94761high
NONINVASIVE EAR OR PULSE OXIMETRY FOR OXYGEN SATURATION; MULTIPLE DETERMINATIONS (EG, DURING EXERCISE)
Source: CMS coverage guidance

Coding guidelines

Compatibility

Legacy and official ICD code match exactly.
Legacy codes
J67.4

Common synonyms

Maltworker's lung

Frequently asked questions

Code details

CodeJ67.4
SystemICD10
Display nameMaltworker's lung
ChapterDiseases of the respiratory system (J00-J99)
BlockLung diseases due to external agents

Flags

BillableYes
Valid clinical useYes

Source

SourceICD-10
Version2026-annual
Releaseannual
Year2026

Index terms

Matched terms
Allergy, allergic(reaction) (to)AlveolitisMaltworker's lungPneumonitis(acute) (primary)

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.

ICD-10 Code J67.4 for Maltworker's lung | HealthAssure