What is ICD-10 code J62.8?

J62.8 is the ICD-10-CM diagnosis code for Pneumoconiosis due to other dust containing silica. A lung disease caused by inhaling dust that contains silica particles from sources other than coal or asbestos, leading to lung scarring. J62.8 is a billable code, meaning it can be reported on a claim as a primary or secondary diagnosis when supported by documentation. J62.8 is part of the FY2026 ICD-10-CM code set published by the CMS National Center for Health Statistics and used on Medicare, Medicaid, and commercial claims in the United States.

Yes. J62.8 is a billable ICD-10-CM code that can be reported on professional and institutional claims as a primary or secondary diagnosis when the provider documentation supports the specific condition described. Billable codes in ICD-10-CM are coded to the highest level of specificity available for the documented diagnosis. J62.8 is current for fiscal year 2026 and remains in the active CMS ICD-10-CM code set published by the National Center for Health Statistics.

What should coders know when reporting J62.8?

Use when silica-containing dust exposure is documented but the source is not coal or asbestos Document the specific type of silica-containing dust exposure when possible Because J62.8 maps to a payment HCC, the documentation must also satisfy MEAT criteria (Monitor, Evaluate, Assess, or Treat) for the encounter to count toward the patient's risk adjustment score.

2026 ICD-10-CM J62.8: Pneumoconiosis due to other

ICD-10-CM Code View

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Code lookupJ62.8Effective 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)

J62.8

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

Pneumoconiosis due to other dust containing silica

A lung disease caused by inhaling dust that contains silica particles from sources other than coal or asbestos, leading to lung scarring.

Buddy Insight

Pneumoconiosis due to other dust containing silica encompasses silicosis and related conditions caused by inhalation of crystalline silica dust (quartz, cristobalite, tridymite).

CMS-HCC V28

Mapped

HCC 280

Chronic Obstructive Pulmonary...

RAF 0.319

CMS-HCC V24

Mapped

HCC 112

Fibrosis of Lung and Other Ch...

RAF 0.219

ACA/HHS

Mapped

HCC 162

HHS-HCC 162

Varies by metal level

ESRD/PACE

Mapped

HCC 112

Fibrosis of Lung and Other Ch...

RAF 0.058

RXHCC

N/A

—

Not risk-adjusted for this model/period.

Not mapped

Code Book Path

Official

J62Pneumoconiosis due to dust containing silica

J62.8Pneumoconiosis due to other dust containing silica

Inclusion Terms

Official

Silicosis NOS

Excludes 2

Official

ICD-10-CM does not list Excludes 2 notes for J62.8 in this effective period.

Related Child Codes

Official

J62.0Pneumoconiosis due to talc dust

Includes

Official

silicotic fibrosis (massive) of lung

Excludes 1

Official

pneumoconiosis with tuberculosis, any type in A15 (J65)

Code First

Official

ICD-10-CM does not list Code First sequencing instructions for J62.8 in this effective period.

Use Additional

Official

ICD-10-CM does not list Use Additional Code instructions for J62.8 in this effective period.

Code Also

Official

ICD-10-CM does not list Code Also instructions for J62.8 in this effective period.

Buddy Documentation Tip

HCC Buddy guidance

Documented occupational history of silica dust exposure with type of work and duration

Chest imaging (X-ray or CT) showing characteristic findings: upper-lobe predominant nodules, eggshell calcification of hilar lymph nodes, progressive massive fibrosis

ILO classification of chest radiograph if available

Pulmonary function testing showing restrictive and/or mixed pattern

MEAT Support

HCC Buddy guidance

Documented occupational history of silica dust exposure with type of work and duration

Chest imaging (X-ray or CT) showing characteristic findings: upper-lobe predominant nodules, eggshell calcification of hilar lymph nodes, progressive massive fibrosis

ILO classification of chest radiograph if available

Pulmonary function testing showing restrictive and/or mixed pattern

Audit Caution

HCC Buddy guidance

Using unspecified pneumoconiosis when silica exposure is documented — always specify the causative dust

Not screening for and coding tuberculosis (A15.x) which has increased incidence in silicosis patients (silicotuberculosis)

Failing to code associated autoimmune conditions (Caplan syndrome — rheumatoid pneumoconiosis)

Confusing silicosis with asbestosis — different imaging patterns and different causative fibers

Common Mistakes

HCC Buddy guidance

J62.0 — Pneumoconiosis due to talc dust: different mineral dust (talc vs. crystalline silica)

J60 — Coalworker's pneumoconiosis: coal dust, not silica; though coal may contain silica

J63.0 — Aluminosis: aluminum dust, different exposure

J64 — Unspecified pneumoconiosis: less specific; use J62.8 when silica exposure is documented

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 J62.8 an HCC code?

Yes. J62.8 (Pneumoconiosis due to other dust containing silica) maps to Chronic Obstructive Pulmonary Disease, Interstitial Lung Disorders, and Other Chronic Lung Disorders under the CMS-HCC V28 risk adjustment model (and Fibrosis of Lung and Other Chronic Lung Disorders under V24), with a community non-dual aged RAF of 0.319. It is billable for payment year 2026.

Coder answer: J62.8 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: J62.8
Description: Pneumoconiosis due to other dust containing silica
HCC (V28): HCC 280 — Chronic Obstructive Pulmonary Disease, Interstitial Lung Disorders, and Other Chronic Lung Disorders
RAF: 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

V24HCC 112, Fibrosis of Lung and Other Chronic Lung Disorders

0.219

ESRDHCC 112, Fibrosis of Lung and Other Chronic Lung Disorders

0.058

Each model's RAF is its CMS base weight for that model's standard population, so 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 segment, interactions, and the model year used by the payer. V28 is the CMS-HCC model phased in over payment years 2024–2026; V24 remains in use during the transition and for historical data.

Work J62.8 in the Code Book — tabular path, V28 RAF, and MEAT checklist →

MEAT Criteria for J62.8

For J62.8 to count as a valid HCC diagnosis in a given encounter, the provider's documentation must show MEAT: Monitor, Evaluate, Assess, or Treat. A diagnosis from a prior year does not carry forward automatically, it has to be re-documented and supported each calendar year.

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

Only one of M/E/A/T is required to support the code, but the documentation must be specific enough to show that the provider actually addressed J62.8 during that encounter, not just copy-forwarded from a problem list.

Coder workflow notes

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What This Code Means

J62.8 is the ICD-10-CM diagnosis code for pneumoconiosis due to other dust containing silica. A lung disease caused by inhaling dust that contains silica particles from sources other than coal or asbestos, leading to lung scarring. J62.8 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, J62.8 maps to Chronic Obstructive Pulmonary Disease, Interstitial Lung Disorders, and Other Chronic Lung Disorders (HCC 280) with a community, non-dual, aged base RAF weight of 0.319. Under the older CMS-HCC V24 model, J62.8 maps to Fibrosis of Lung and Other Chronic Lung Disorders (HCC 112) with a community, non-dual, aged base RAF weight of 0.219. V28 is the CMS-HCC risk adjustment model that reached 100% phase-in for payment year 2026, replacing V24 which was used during the PY2024–PY2025 transition.

Use when silica-containing dust exposure is documented but the source is not coal or asbestos. Because J62.8 maps to a payment HCC, the provider's documentation must satisfy MEAT criteria (Monitor, Evaluate, Assess, or Treat) for the encounter to count toward the patient's Medicare Advantage risk adjustment score. 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, RAF weights, and MEAT documentation criteria for J62.8 sourced directly from the CMS-HCC risk adjustment model files and the CMS ICD-10-CM code set.

Coding Tips

•Use when silica-containing dust exposure is documented but the source is not coal or asbestos
•Document the specific type of silica-containing dust exposure when possible

Clinical Significance

Pneumoconiosis due to other dust containing silica encompasses silicosis and related conditions caused by inhalation of crystalline silica dust (quartz, cristobalite, tridymite). Silicosis is one of the oldest and most prevalent occupational lung diseases worldwide, occurring in mining, sandblasting, quarrying, and construction, with potential progression to progressive massive fibrosis.

Documentation Requirements

✓Documented occupational history of silica dust exposure with type of work and duration
✓Chest imaging (X-ray or CT) showing characteristic findings: upper-lobe predominant nodules, eggshell calcification of hilar lymph nodes, progressive massive fibrosis
✓ILO classification of chest radiograph if available
✓Pulmonary function testing showing restrictive and/or mixed pattern
✓Provider diagnosis of silicosis or pneumoconiosis due to silica-containing dust
✓Assessment for associated conditions: tuberculosis (increased risk with silicosis), connective tissue disease
✓Type of silicosis documented if applicable: acute, accelerated, or chronic

Commonly Confused Codes

•J62.0: Pneumoconiosis due to talc dust: different mineral dust (talc vs. crystalline silica)
•J60: Coalworker's pneumoconiosis: coal dust, not silica; though coal may contain silica
•J63.0: Aluminosis: aluminum dust, different exposure
•J64: Unspecified pneumoconiosis: less specific; use J62.8 when silica exposure is documented