J67.2 maps to CMS-HCC V28 280. A source-labeled RAF reference is available. Confirm the documented diagnosis and applicable coding requirements. MEAT criteria · RAF Calculator · HCC Buddy coding tools

ICD-10-CM Code View

HCC Buddy Code Card

Digital ICD-10 code-book layout with official code detail, always-visible risk models, Code Trumping, and Buddy coding guidance.

Code lookupJ67.2

Effective periodFY2026 Apr Update (Apr 1-Sep 30)

FY 2026 Apr update / Diseases of the respiratory system (J00-J99) / Lung diseases due to external agents (J60-J70)

J67.2

Billable / SpecificICD-10-CMOfficial ICD-10-CMCodebook guidance

Bird fancier's lung

An allergic lung disease that develops in people who work with or are exposed to bird feathers, droppings, or dust, commonly seen in bird breeders and handlers.

Buddy Insight

Bird fancier's lung is one of the most common forms of hypersensitivity pneumonitis in non-agricultural settings, caused by avian proteins in feathers and droppings.

Overview Risk Models Code Book Documentation Audit Notes Edition comparison

CMS-HCC V28

Mapped

HCC 280

Chronic Obstructive Pulmonary...

Coefficient HCC 280: 0.319 (Community Non-Dual Aged (CNA))

CMS-HCC V24

Historical

Not used for standard CY2026 Medicare Advantage payment. Select a historical period to review V24.

Not used for CY2026 payment

ACA/HHS

Mapped

HCC 162

HHS-HCC 162 adult, RAF varies...

Code-level coefficient reference

ESRD/PACE

Mapped

HCC 112

Fibrosis of Lung and Other Ch...

Code-level coefficient reference

RXHCC

N/A

—

Not risk-adjusted for this model/period.

Not mapped

Code Book Path

Official

J67Hypersensitivity pneumonitis due to organic dust J67.2Bird fancier's lung

Inclusion Terms

Official

Budgerigar fancier's disease or lung
Pigeon fancier's disease or lung

Excludes 2

Official

certain conditions originating in the perinatal period (P04-P96)Inherited from J00-J99, J60-J70
certain infectious and parasitic diseases (A00-B99)Inherited from J00-J99, J60-J70
complications of pregnancy, childbirth and the puerperium (O00-O9A)Inherited from J00-J99, J60-J70
congenital malformations, deformations and chromosomal abnormalities (Q00-Q99)Inherited from J00-J99, J60-J70
endocrine, nutritional and metabolic diseases (E00-E88)Inherited from J00-J99, J60-J70
injury, poisoning and certain other consequences of external causes (S00-T88)Inherited from J00-J99, J60-J70
neoplasms (C00-D49)Inherited from J00-J99, J60-J70
smoke inhalation (T59.81-)Inherited from J00-J99, J60-J70
symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R94)Inherited from J00-J99, J60-J70
asthma (J45.-)Inherited from J00-J99, J60-J70
malignant neoplasm of bronchus and lung (C34.-)Inherited from J00-J99, J60-J70

Related Codes

Official

J67.0Farmer's lung J67.1Bagassosis J67.3Suberosis J67.4Maltworker's lung J67.5Mushroom-worker's lung

Includes

Official

allergic alveolitis and pneumonitis due to inhaled organic dust and particles of fungal, actinomycetic or other originInherited from J67

Excludes 1

Official

pneumonitis due to inhalation of chemicals, gases, fumes or vapors (J68.0)Inherited from J67

Code First

Official

No Code First sequencing instructions are included in this display for J67.2. Check the code and parent instructions in the Code Book.

Use Additional

Official

code, where applicable, to identify:Inherited from J00-J99
exposure to environmental tobacco smoke (Z77.22)Inherited from J00-J99
exposure to tobacco smoke in the perinatal period (P96.81)Inherited from J00-J99
history of tobacco dependence (Z87.891)Inherited from J00-J99
occupational exposure to environmental tobacco smoke (Z57.31)Inherited from J00-J99
tobacco dependence (F17.-)Inherited from J00-J99
tobacco use (Z72.0)Inherited from J00-J99

Code Also

Official

No Code Also instructions are included in this display for J67.2. Check the code and parent instructions in the Code Book.

Buddy Documentation Tip

HCC Buddy guidance

Documented exposure to bird feathers, droppings, or dust (pigeons, parrots, budgerigars, chickens, etc.)

Specific bird species involved if known

Classification as acute, subacute, or chronic hypersensitivity pneumonitis

Serum avian precipitins or specific IgG antibodies if tested

MEAT Support

HCC Buddy guidance

Documented exposure to bird feathers, droppings, or dust (pigeons, parrots, budgerigars, chickens, etc.)

Specific bird species involved if known

Classification as acute, subacute, or chronic hypersensitivity pneumonitis

Serum avian precipitins or specific IgG antibodies if tested

Audit Caution

HCC Buddy guidance

Not asking about bird exposure — many patients with chronic hypersensitivity pneumonitis have unrecognized bird exposure at home

Coding chronic bird fancier's lung as idiopathic pulmonary fibrosis when the avian exposure history exists

Using unspecified hypersensitivity pneumonitis when the bird exposure is documented

Failing to distinguish between acute episodes (which resolve with avoidance) and chronic fibrotic disease

Common Mistakes

HCC Buddy guidance

J67.8 (Hypersensitivity pneumonitis due to other organic dusts) — use J67.2 when bird exposure is the cause

J67.9 (Hypersensitivity pneumonitis due to unspecified organic dust) — use J67.2 when avian exposure is documented

J67.0 (Farmer's lung) — different exposure; though farmers may have concurrent bird and mold exposures

J84.112 (Idiopathic pulmonary fibrosis) — chronic bird fancier's lung can mimic IPF

Current with CMS: FY2026 ICD-10-CM Apr 1 update (effective Apr 1 – Sep 30, 2026) · CMS-HCC V28, 100% phased in for payment year 2026. FY2027 code set already staged for October 1, 2026. How HCC Buddy stays current →

Is J67.2 an HCC code?

Yes. J67.2 (Bird fancier's lung) maps to HCC 280, Chronic Obstructive Pulmonary Disease, Interstitial Lung Disorders, and Other Chronic Lung Disorders under the CMS-HCC V28 risk adjustment model, with a source-labeled community non-dual aged reference coefficient of 0.319. Source-labeled code-level coefficients are references, not member totals. Actual contribution depends on complete member context, hierarchy and cleanup rules, interactions, and model year. HCC Buddy's RAF Calculator supports CMS-HCC V28 PY2026 and shows no score unless every required source and calculation check passes. It is billable for payment year 2026.

Coder answer: J67.2 is billable and maps to V28 HCC 280, Chronic Obstructive Pulmonary Disease, Interstitial Lung Disorders, and Other Chronic Lung Disorders. Open it in the Code Book for the tabular path, RAF, and MEAT checklist.

Code: J67.2
Description: Bird fancier's lung
HCC (V28): HCC 280 — Chronic Obstructive Pulmonary Disease, Interstitial Lung Disorders, and Other Chronic Lung Disorders
RAF reference coefficient: 0.319
Billable: Yes
Payment year: 2026

HCC Category Mapping

V28HCC 280, Chronic Obstructive Pulmonary Disease, Interstitial Lung Disorders, and Other Chronic Lung Disorders

0.319

ESRDHCC 112, Fibrosis of Lung and Other Chronic Lung Disorders

Not separately weighted

These are source-labeled model coefficients, not member totals. A category may still be removed by hierarchy or model cleanup rules. Weights are not directly comparable across models: CMS-HCC V28 and V24 use Community, Non-Dual, Aged; ESRD uses the dialysis continuing-enrollee model; RxHCC is the Part D continuing-enrollee, non-low-income, aged weight (a larger scale than CMS-HCC). ACA/HHS has no single weight — it varies by metal level. Actual per-patient RAF contribution depends on member context, hierarchy and cleanup rules, interactions, and the model year used by the payer. V28 is the CMS-HCC model phased in over payment years 2024–2026; V24 remains available for historical review.

Work J67.2 in the Code Book — tabular path, V28 RAF reference, and MEAT checklist →

MEAT review for J67.2

For J67.2, confirm that the documentation supports the diagnosis and meets the applicable coding, encounter, program and payer requirements. MEAT (Monitor, Evaluate, Assess, or Treat) is a review mnemonic, not a universal CMS coding rule.

MMonitor: signs, symptoms, disease progression, or lab trending documented in the note
EEvaluate: test results, medication response, or physical findings reviewed by the provider
AAssess: explicit mention in the assessment or plan with acknowledgment of status
TTreat: medication, referral, procedure, therapy, or counseling tied to the diagnosis

Coder workflow notes

Get the V28 mapping + MEAT cheat sheet

One printable reference: check representative V28 mappings and the documentation reminders your note needs. Free, no card.

Free PDF. No card. Unsubscribe anytime.

What This Code Means

J67.2 is the ICD-10-CM diagnosis code for bird fancier's lung. An allergic lung disease that develops in people who work with or are exposed to bird feathers, droppings, or dust, commonly seen in bird breeders and handlers. J67.2 sits in the ICD-10-CM chapter for diseases of the respiratory system (j00-j99), within the section covering lung diseases due to external agents (j60-j70).

Under the CMS-HCC V28 risk adjustment model, J67.2 maps to Chronic Obstructive Pulmonary Disease, Interstitial Lung Disorders, and Other Chronic Lung Disorders (HCC 280) with a source-labeled community, non-dual, aged reference coefficient of 0.319. For CY2026 non-PACE Medicare Advantage, CMS uses 100% of the 2024 CMS-HCC model (V28). PACE uses a separate model blend. Source-labeled code-level coefficients are references, not member totals. Actual contribution depends on complete member context, hierarchy and cleanup rules, interactions, and model year. HCC Buddy's RAF Calculator supports CMS-HCC V28 PY2026 and shows no score unless every required source and calculation check passes.

Document the specific bird exposure (pigeons, parrots, chickens, etc.) if available. For J67.2, confirm that the documentation supports the diagnosis and meets the applicable coding, encounter, program and payer requirements. MEAT (Monitor, Evaluate, Assess, or Treat) is a review mnemonic, not a universal CMS coding rule. When documentation is ambiguous, coders should issue a provider query rather than assume the highest-specificity variant.

HCC Buddy maintains structured V28 and V24 mapping, source-labeled coefficient references, and MEAT documentation criteria for J67.2 sourced directly from the CMS-HCC risk adjustment model files and the CMS ICD-10-CM code set.

Coding Tips

•Document the specific bird exposure (pigeons, parrots, chickens, etc.) if available
•This is a hypersensitivity pneumonitis; distinguish from other bird-related respiratory conditions

Clinical Significance

Bird fancier's lung is one of the most common forms of hypersensitivity pneumonitis in non-agricultural settings, caused by avian proteins in feathers and droppings. It is clinically significant for risk adjustment because chronic exposure can lead to irreversible pulmonary fibrosis, and the condition requires long-term monitoring, immunosuppressive therapy, and environmental avoidance measures.

Documentation Requirements

✓Documented exposure to bird feathers, droppings, or dust (pigeons, parrots, budgerigars, chickens, etc.)
✓Specific bird species involved if known
✓Classification as acute, subacute, or chronic hypersensitivity pneumonitis
✓Serum avian precipitins or specific IgG antibodies if tested
✓Chest imaging findings and pulmonary function test results
✓Treatment plan including avoidance of bird exposure and any immunosuppressive therapy

Commonly Confused Codes

•J67.8 (Hypersensitivity pneumonitis due to other organic dusts): use J67.2 when bird exposure is the cause
•J67.9 (Hypersensitivity pneumonitis due to unspecified organic dust): use J67.2 when avian exposure is documented
•J67.0 (Farmer's lung): different exposure; though farmers may have concurrent bird and mold exposures
•J84.112 (Idiopathic pulmonary fibrosis): chronic bird fancier's lung can mimic IPF