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J67.5 ICD-10-CM Code: Mushroom-worker's lung

Billing Status: YES. This is a valid, specific, and billable ICD-10-CM reference.

Coding at a Glance

Tabular directives
1 inclusion term · 1 Excludes1 · 2 Excludes2
Risk adjustment
CMS-HCC V28: 1 category · CMS-HCC V22 category 112

Inpatient Payment Groups (MS-DRG)

Potential MS-DRG participation — not a DRG assignment.

MS-DRGs this diagnosis helps define, as principal or secondary, per the CMS ICD-10-CM/PCS MS-DRG Definitions Manual v43, Appendix B.

  • MS-DRG 196 — INTERSTITIAL LUNG DISEASE WITH MCC (MDC 04)
  • MS-DRG 197 — INTERSTITIAL LUNG DISEASE WITH CC (MDC 04)
  • MS-DRG 198 — INTERSTITIAL LUNG DISEASE WITHOUT CC/MCC (MDC 04)

A diagnosis appearing in a group's logic does not by itself determine the DRG assigned to a stay; the grouper uses the full claim.

Risk Adjustment (CMS-HCC)

Payment categories this diagnosis maps to under CMS-HCC V28, payment year 2026.

  • HCC 280 — Chronic Obstructive Pulmonary Disease, Interstitial Lung Disorders, and Other Chronic Lung Disorders

Other models: CMS-HCC V22 HCC 112

Risk scores depend on the enrollee's full accepted diagnosis set and segment; a category mapping alone does not determine payment.

Coding instructions

Official Tabular Instructional Notes: the inclusion, exclusion and sequencing notes published for J67.5 in the official ICD-10-CM tabular list, quoted as published.

Source: CMS/CDC — ICD-10-CM Tabular ListRelease: FY2026Effective: October 1, 2025

Notes without a marker are published on J67.5 itself; “inherited from” names the category or block whose note applies here.

Includes

Conditions the official ICD-10-CM tabular list includes under this code.

  • allergic alveolitis and pneumonitis due to inhaled organic dust and particles of fungal, actinomycetic or other origin

Source: inherited from J67

Excludes1 — Not Coded Here

Conditions generally not reported together with this code (Excludes1) -- an error unless the two conditions are documented as unrelated to each other (ICD-10-CM Official Guidelines, Section I.A.12.a).

Source: inherited from J67

Excludes2 — Not Included Here

Conditions not covered by this code, but which may be reported alongside it when both are present.

Source: inherited from J60-J70

Coder workflow for J67.5

MedCoder structured workflow — derived from this code’s own official record

Before you code J67.5

  1. Check the Excludes1 note: if the documentation supports a condition named there, do not simply proceed with J67.5. Excludes1 conditions are not reported together with this code unless the record shows they are unrelated (Guidelines I.A.12.a).

    See the official tabular notes

Choose the right path

  1. Does the documentation support a condition named in J67.5’s Excludes1 note?
    Yes → Do not simply proceed: review the excluded code. Both are reported only when the record shows the two conditions are unrelated.
    No → Continue.

    ReviewJ68.0

Consider J67.5. Then confirm the code is valid for the date of service in the Verify section.

Documentation check

The provider’s diagnostic statement
Codes are assigned from the provider’s documented diagnosis, not from clinical criteria, test values or a medication list (Guidelines I.A.19).

Official instructions as workflow

  • Excludes1 — check before selecting J67.5(1 note)

    Coding workflow: If the documentation supports a condition named in this note, do not simply proceed with J67.5: the two are not reported together. The one exception is when the record shows the two conditions are unrelated to each other.

    CompareJ68.0

    See the official tabular notes · Guidelines I.A.12.a

  • Excludes2 — not part of J67.5(2 notes)

    Coding workflow: The conditions named in this note are not included in J67.5. When the record documents both, both may be reported; the note is a boundary, not a prohibition.

    CompareJ45, C34

    See the official tabular notes · Guidelines I.A.12.b

Coding decision scenarios

Pattern scenarios for this code’s structure — decision rules, not clinical cases

Documentation: Both the condition J67.5 describes and a condition named in its Excludes1 note are documented for the same encounter.

Coding question: Can both codes be reported?

Path: Review the Excludes1 note and the excluded code, and look for a provider statement on whether the two conditions are related.

Reason: Excludes1 means the two are not coded together; the exception is when the record shows the conditions are unrelated to each other (Guidelines I.A.12.a).

ReviewJ68.0

Every row is derived from this code’s own record — its title, tabular notes, 7th-character family and same-category siblings — with fixed MedCoder wording; nothing is inferred about a patient. The official notes and guideline text are in the sections each row links to, and they control.

Code Overview

Mushroom-worker's lung is a billable ICD-10-CM diagnosis code (J67.5).

MedCoder summary Summary composed by MedCoder from this code's official ICD-10-CM record. The tabular instructional notes themselves appear verbatim below.

Indexed Clinical Terms (3)

Official source data — entries quoted as published, in the Index’s own lookup phrasing

Clinical term phrases from the official ICD-10-CM Index to Diseases and Injuries that map to this code. These are alphabetic-index entries shown as the Index writes them — lookup phrasing, not necessarily the wording of a final diagnosis.

Verify Before Coding

  • No Medicare Code Editor or MS-DRG Definitions Manual restrictions apply to this code.

From the code registry, the Medicare Code Editor, and the MS-DRG Definitions Manual. Check it against a full claim in Claim Check.

Relationships & Classification

MedCoder structured relationships — computed from published CMS and AHRQ datasets

Other codes that name J67.5 or its code family, from the CMS ICD-10-CM tabular instructional notes. Tabular-note edges are stored at the code family level that carries each note.

Referenced by 2 Excludes1 notes: J39.3 — Upper respiratory tract hypersensitivity reaction, site unspecified (via J67.-), J81 — Pulmonary edema (via J67.-).

These codes’ tabular lists mark this diagnosis as mutually exclusive — not reported together unless the conditions are documented as unrelated.

Referenced by 22 Excludes2 notes across 2 chapters: B35 — Dermatophytosis (via J67.-), B35-B49 — Mycoses (B35-B49) (via J67.-), B36 — Other superficial mycoses (via J67.-), B37 — Candidiasis (via J67.-), B38 — Coccidioidomycosis (via J67.-), B39 — Histoplasmosis (via J67.-), B40 — Blastomycosis (via J67.-), B41 — Paracoccidioidomycosis (via J67.-), B42 — Sporotrichosis (via J67.-), B43 — Chromomycosis and pheomycotic abscess (via J67.-), B44 — Aspergillosis (via J67.-), B45 — Cryptococcosis (via J67.-), B46 — Zygomycosis (via J67.-), B47 — Mycetoma (via J67.-), B48 — Other mycoses, not elsewhere classified (via J67.-), B49 — Unspecified mycosis (via J67.-), J18 — Pneumonia, unspecified organism (via J67.-), J44.1 — Chronic obstructive pulmonary disease with (acute) exacerbation (via J67.-), J44.9 — Chronic obstructive pulmonary disease, unspecified (via J67.-), J45.909 — Unspecified asthma, uncomplicated (via J67.-), +2 more.

These codes’ tabular lists name this diagnosis as distinct — both may be reported when both are documented.

Referenced by 1 Code First instruction: J84.170 — Interstitial lung disease with progressive fibrotic phenotype in diseases classified elsewhere (via J67.-).

Each of these codes carries a Code First note naming this condition — when that code is reported, THIS code is sequenced first, ahead of it.

Referenced by 16 Use Additional Code instructions: T51 — Toxic effect of alcohol (via J67.-), T51-T65 — Toxic effects of substances chiefly nonmedicinal as to source (T51-T65) (via J67.-), T52 — Toxic effect of organic solvents (via J67.-), T53 — Toxic effect of halogen derivatives of aliphatic and aromatic hydrocarbons (via J67.-), T54 — Toxic effect of corrosive substances (via J67.-), T55 — Toxic effect of soaps and detergents (via J67.-), T56 — Toxic effect of metals (via J67.-), T57 — Toxic effect of other inorganic substances (via J67.-), T58 — Toxic effect of carbon monoxide (via J67.-), T59 — Toxic effect of other gases, fumes and vapors (via J67.-), T60 — Toxic effect of pesticides (via J67.-), T61 — Toxic effect of noxious substances eaten as seafood (via J67.-), T62 — Toxic effect of other noxious substances eaten as food (via J67.-), T63 — Toxic effect of contact with venomous animals and plants (via J67.-), T64 — Toxic effect of aflatoxin and other mycotoxin food contaminants (via J67.-), T65 — Toxic effect of other and unspecified substances (via J67.-).

These codes instruct coders to additionally report this code when it applies.

MS-DRG Grouper Relationships (FY2026)

Potential MS-DRG participation — not a DRG assignment.

FY2026 MS-DRG: not on the CMS CC/MCC list — as a secondary diagnosis this code does not change MS-DRG severity for that release.

Named in the grouper logic of 3 MS-DRGs: DRG 196 (MDC 04), DRG 197 (MDC 04), DRG 198 (MDC 04).

From the CMS MS-DRG Definitions Manual (Appendices B and C). Actual DRG assignment depends on the complete claim.

Clinical classification (AHRQ CCSR):RSP013 — Lung disease due to external agents (default).

Clinical Classifications Software Refined (CCSR) for ICD-10-CM Diagnoses. Healthcare Cost and Utilization Project (HCUP), Agency for Healthcare Research and Quality.

Related Codes

Same CMS-HCC risk category (V28)

CMS maps these diagnoses to the same Hierarchical Condition Category (Chronic Obstructive Pulmonary Disease, Interstitial Lung Disorders, and Other Chronic Lung Disorders) for risk-adjusted payment.

J65 — Pneumoconiosis associated with tuberculosis, J66.0 — Byssinosis, J66.1 — Flax-dressers' disease, J66.2 — Cannabinosis, J66.8 — Airway disease due to other specific organic dusts, J67.0 — Farmer's lung, J67.1 — Bagassosis, J67.2 — Bird fancier's lung, J67.3 — Suberosis, J67.4 — Maltworker's lung, J67.6 — Maple-bark-stripper's lung, J67.7 — Air conditioner and humidifier lung, J67.8 — Hypersensitivity pneumonitis due to other organic dusts, J67.9 — Hypersensitivity pneumonitis due to unspecified organic dust, J68.0 — Bronchitis and pneumonitis due to chemicals, gases, fumes and vapors, J68.1 — Pulmonary edema due to chemicals, gases, fumes and vapors, J68.2 — Upper respiratory inflammation due to chemicals, gases, fumes and vapors, not elsewhere classified, J68.3 — Other acute and subacute respiratory conditions due to chemicals, gases, fumes and vapors, J68.4 — Chronic respiratory conditions due to chemicals, gases, fumes and vapors, J68.8 — Other respiratory conditions due to chemicals, gases, fumes and vapors, +58 more

Related risk categories

These categories interact through CMS's HCC hierarchy — one can suppress the other's risk-adjustment weight when both are present on a claim.

Lung Transplant Status/Complications, Cystic Fibrosis, Idiopathic Pulmonary Fibrosis and Lung Involvement in Systemic Sclerosis, Severe Persistent Asthma

Same clinical category (CCSR)

AHRQ's Clinical Classifications Software groups these diagnoses under the same clinical category (Lung disease due to external agents).

J65 — Pneumoconiosis associated with tuberculosis, J66.0 — Byssinosis, J66.1 — Flax-dressers' disease, J66.2 — Cannabinosis, J66.8 — Airway disease due to other specific organic dusts, J67.0 — Farmer's lung, J67.1 — Bagassosis, J67.2 — Bird fancier's lung, J67.3 — Suberosis, J67.4 — Maltworker's lung, J67.6 — Maple-bark-stripper's lung, J67.7 — Air conditioner and humidifier lung, J67.8 — Hypersensitivity pneumonitis due to other organic dusts, J67.9 — Hypersensitivity pneumonitis due to unspecified organic dust, J68.0 — Bronchitis and pneumonitis due to chemicals, gases, fumes and vapors, J68.1 — Pulmonary edema due to chemicals, gases, fumes and vapors, J68.2 — Upper respiratory inflammation due to chemicals, gases, fumes and vapors, not elsewhere classified, J68.3 — Other acute and subacute respiratory conditions due to chemicals, gases, fumes and vapors, J68.4 — Chronic respiratory conditions due to chemicals, gases, fumes and vapors, J68.8 — Other respiratory conditions due to chemicals, gases, fumes and vapors, +24 more

Same Index main term, other category

The ICD-10-CM Index to Diseases and Injuries files this code under the main term “Pneumonitis”; these codes share that main term but sit in a different category of the Tabular List.

B58.3 — Pulmonary toxoplasmosis (due to, toxoplasmosis), J68.0 — Bronchitis and pneumonitis due to chemicals, gases, fumes and vapors (crack), J69.0 — Pneumonitis due to inhalation of food and vomit (aspiration), J69.1 — Pneumonitis due to inhalation of oils and essences (due to, oils, essences), J69.8 — Pneumonitis due to inhalation of other solids and liquids (due to, detergent), J70.0 — Acute pulmonary manifestations due to radiation (radiation), J70.2 — Acute drug-induced interstitial lung disorders (chemotherapy, acute), J70.3 — Chronic drug-induced interstitial lung disorders (chemotherapy, chronic), J70.4 — Drug-induced interstitial lung disorders, unspecified (chemotherapy), J82.81 — Chronic eosinophilic pneumonia (eosinophilic), J82.82 — Acute eosinophilic pneumonia (eosinophilic, acute), J84.113 — Idiopathic non-specific interstitial pneumonitis (interstitial, non-specific, idiopathic), J84.114 — Acute interstitial pneumonitis (interstitial, acute), J84.2 — Lymphoid interstitial pneumonia (interstitial, lymphoid), J84.89 — Other specified interstitial pulmonary diseases (cholesterol), J95.4 — Chemical pneumonitis due to anesthesia (postoperative), J95.851 — Ventilator associated pneumonia (due to, ventilator), J98.4 — Other disorders of lung, O29.01 — Aspiration pneumonitis due to anesthesia during pregnancy (postanesthetic, in pregnancy), O74.0 — Aspiration pneumonitis due to anesthesia during labor and delivery (aspiration, obstetric), +4 more

Contextual Map

Every relationship of J67.5 in one view: hierarchy, official tabular instructions in both directions, clinical classification, risk adjustment, MS-DRG participation, index terms and change history — each edge carrying the CMS source it derives from.

Run J67.5 with these 19 related codes in Claim Check

Hierarchy

Referenced by Excludes1 notes

Referenced by Excludes2 notes (22)

  • B35 — Dermatophytosis[Excludes2](via J67.-): “hypersensitivity pneumonitis due to organic dust (J67.-)”— CMS ICD-10-CM tabular instructional notes · icd10cm-fy2026
  • B35-B49 — Mycoses (B35-B49)[Excludes2](via J67.-): “hypersensitivity pneumonitis due to organic dust (J67.-)”— CMS ICD-10-CM tabular instructional notes · icd10cm-fy2026
  • B36 — Other superficial mycoses[Excludes2](via J67.-): “hypersensitivity pneumonitis due to organic dust (J67.-)”— CMS ICD-10-CM tabular instructional notes · icd10cm-fy2026
  • B37 — Candidiasis[Excludes2](via J67.-): “hypersensitivity pneumonitis due to organic dust (J67.-)”— CMS ICD-10-CM tabular instructional notes · icd10cm-fy2026
  • B38 — Coccidioidomycosis[Excludes2](via J67.-): “hypersensitivity pneumonitis due to organic dust (J67.-)”— CMS ICD-10-CM tabular instructional notes · icd10cm-fy2026
  • B39 — Histoplasmosis[Excludes2](via J67.-): “hypersensitivity pneumonitis due to organic dust (J67.-)”— CMS ICD-10-CM tabular instructional notes · icd10cm-fy2026
  • B40 — Blastomycosis[Excludes2](via J67.-): “hypersensitivity pneumonitis due to organic dust (J67.-)”— CMS ICD-10-CM tabular instructional notes · icd10cm-fy2026
  • B41 — Paracoccidioidomycosis[Excludes2](via J67.-): “hypersensitivity pneumonitis due to organic dust (J67.-)”— CMS ICD-10-CM tabular instructional notes · icd10cm-fy2026
  • and 14 more

Referenced by Code First instructions

Referenced by Use Additional Code instructions (16)

  • T51 — Toxic effect of alcohol[Use Additional Code](via J67.-): “for all associated manifestations of toxic effect, such as: respiratory conditions due to external agents (J60-J70)”— CMS ICD-10-CM tabular instructional notes · icd10cm-fy2026
  • T51-T65 — Toxic effects of substances chiefly nonmedicinal as to source (T51-T65)[Use Additional Code](via J67.-): “for all associated manifestations of toxic effect, such as: respiratory conditions due to external agents (J60-J70)”— CMS ICD-10-CM tabular instructional notes · icd10cm-fy2026
  • T52 — Toxic effect of organic solvents[Use Additional Code](via J67.-): “for all associated manifestations of toxic effect, such as: respiratory conditions due to external agents (J60-J70)”— CMS ICD-10-CM tabular instructional notes · icd10cm-fy2026
  • T53 — Toxic effect of halogen derivatives of aliphatic and aromatic hydrocarbons[Use Additional Code](via J67.-): “for all associated manifestations of toxic effect, such as: respiratory conditions due to external agents (J60-J70)”— CMS ICD-10-CM tabular instructional notes · icd10cm-fy2026
  • T54 — Toxic effect of corrosive substances[Use Additional Code](via J67.-): “for all associated manifestations of toxic effect, such as: respiratory conditions due to external agents (J60-J70)”— CMS ICD-10-CM tabular instructional notes · icd10cm-fy2026
  • T55 — Toxic effect of soaps and detergents[Use Additional Code](via J67.-): “for all associated manifestations of toxic effect, such as: respiratory conditions due to external agents (J60-J70)”— CMS ICD-10-CM tabular instructional notes · icd10cm-fy2026
  • T56 — Toxic effect of metals[Use Additional Code](via J67.-): “for all associated manifestations of toxic effect, such as: respiratory conditions due to external agents (J60-J70)”— CMS ICD-10-CM tabular instructional notes · icd10cm-fy2026
  • T57 — Toxic effect of other inorganic substances[Use Additional Code](via J67.-): “for all associated manifestations of toxic effect, such as: respiratory conditions due to external agents (J60-J70)”— CMS ICD-10-CM tabular instructional notes · icd10cm-fy2026
  • and 8 more

Clinical classification (CCSR)

Risk adjustment (CMS-HCC)

  • HCC 280 — Chronic Obstructive Pulmonary Disease, Interstitial Lung Disorders, and Other Chronic Lung Disorders [CMS-HCC]— CMS-HCC V28 · 2026

MS-DRG Grouper

MDC crossing

  • MDC 04 — Diseases and Disorders of the Respiratory System[MDC crossing]: “Diseases and Disorders of the Respiratory System — the grouper's crossing between diagnoses and procedures: a principal diagnosis sets the MDC, and same-MDC procedures move the stay to its surgical DRGs. 3,998 same-MDC procedures group here; browse them on the MDC page.”— CMS MS-DRG Definitions Manual · FY2026

Index entries

  • Disease, diseased, mushroom workers'[Index term]— CMS ICD-10-CM Index to Diseases and Injuries · icd10cm-fy2026
  • Mushroom-workers'disease or lung (pickers')[Index term]— CMS ICD-10-CM Index to Diseases and Injuries · icd10cm-fy2026
  • Pneumonitis (acute) (primary), hypersensitivity, mushroom worker's lung[Index term]— CMS ICD-10-CM Index to Diseases and Injuries · icd10cm-fy2026

Nearest codes (10)

Change history

  • FY2016 — In the code set at ICD-10-CM adoption [Change history]— CMS release files (code change ledger) · icd10cm-fy2016

Sources for this page

Codes, titles, notes, index terms and mappings on this page are transcribed from the datasets below. Relationships MedCoder computed and text MedCoder wrote are labelled where they appear.

Code, title, tabular notes and index terms Official source data
CMS/CDC ICD-10-CM FY2026 tabular list, index and tables, effective October 1, 2025 Release, file and checksum · Publisher’s page
Claim edits Official source data
CMS Definitions of Medicare Code Edits — v43.1 (April 2026) Release, file and checksum · Publisher’s page
Inpatient payment groups Official source data
CMS MS-DRG Definitions Manual (incl. Appendix B diagnosis index, Appendix C CC/MCC list, Appendix E procedure index) and IPPS Final Rule tables — v43 Release, file and checksum · Publisher’s page
Risk adjustment Official source data
2026 Mid-Year Final ICD-10 Mappings + Model Software (cms.gov/files/zip/2026-midyear-final-icd-10-mappings.zip, 2026-midyear-final-model-software.zip) — CMS-HCC V28, PY2026 mid-year final release Release, file and checksum · Publisher’s page
Change history and date-of-service validity Official source data
CMS ICD-10-CM release addenda, ingested release by release into the change ledger Release, file and checksum · Publisher’s page
Comparisons, relationships and the contextual map MedCoder structured relationship
Computed by MedCoder from the tabular notes and tables above; every derived relationship is marked as derived where it appears
Summary and FAQ answers MedCoder explanation
Written by MedCoder to explain the sources above: drafted with AI assistance, checked by a person against the release files, and labelled as MedCoder text where it appears. Not official text.

Labels on this page: Official source data · MedCoder structured relationship · MedCoder explanation. How to read the labels · All data sources and release dates

Change history

  • FY2016 — October 1, 2015
    In the code set at ICD-10-CM adoption
    Mushroom-worker's lung

No changes since FY2016 — additions, deletions, description changes and billable-status changes are tracked through FY2027 (effective October 1, 2026), and none are recorded for this code. Note changes are tracked from FY2027 only.

Nearest Codes in This Family

Official ICD-10-CM classifications closest to J67.5 in its code family, with their registry titles.

View all codes in the J67 family