What is ICD-10 code D86.2?

D86.2 is the ICD-10-CM diagnosis code for Sarcoidosis of lung with sarcoidosis of lymph nodes. It belongs to the ICD-10-CM chapter for diseases of the blood and blood-forming organs and certain disorders involving the immune mechanism (d50-d89). D86.2 is a billable code, meaning it can be reported on a claim as a primary or secondary diagnosis when supported by documentation. D86.2 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. D86.2 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. D86.2 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.

Which HCC does D86.2 map to under V28?

D86.2 does not map to a CMS-HCC V28 payment category. Check the current CMS-HCC V28 model file for payment year 2026 rather than an older V24 tip sheet.

What does D86.2 pay in RAF?

D86.2 has no separately stated V28 community RAF weight. If it is not a V28 payment HCC, it adds nothing to a community RAF score.

What is the V28 vs V24 difference for D86.2?

CMS phased in the V28 risk adjustment model over payment years 2024 (33%), 2025 (67%), and 2026 (100%), replacing V24. V28 consolidates HCC categories, removes some lower-acuity conditions, and recalibrates RAF weights across the entire model. D86.2 was a payment HCC under V24 (Fibrosis of Lung and Other Chronic Lung Disorders) but the V28 recalibration removed it from the risk adjustment model. Both models can still appear in legacy data and in payer-specific lookback periods.

What documentation supports D86.2?

Verify documentation clearly states involvement of both lungs AND lymph nodes; if only one site is affected, use a more specific code (D86.0 for lung only, D86.1 for lymph nodes only) This code is for pulmonary sarcoidosis with hilar lymphadenopathy; do not use if sarcoidosis affects other organs without lung involvement Because D86.2 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. See the MEAT criteria checklist at /meat-criteria for what Monitor, Evaluate, Assess, or Treat looks like in a note. MEAT is generic documentation evidence, not a payer-specific rule.

2026 ICD-10-CM D86.2: Sarcoidosis of lung

D86.2 is not a CMS-HCC payment code. MEAT criteria · RAF calculator · HCC coding software

ICD-10-CM Code View

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Code lookupD86.2Effective periodFY2026 Apr Update (Apr 1-Sep 30)

FY 2026 Apr update / Diseases of the blood and blood-forming organs and certain disorders involving the immune mechanism (D50-D89) / Certain disorders involving the immune mechanism (D80-D89)

D86.2

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

Sarcoidosis of lung with sarcoidosis of lymph nodes

Sarcoidosis is a chronic inflammatory disease where abnormal tissue collections form in the lungs and lymph nodes. This code specifically indicates that a patient has sarcoidosis affecting both the lungs and the lymph nodes (glands) in the chest.

Buddy Insight

Sarcoidosis involving both the lungs and lymph nodes represents a more extensive disease burden than isolated pulmonary or nodal sarcoidosis.

CMS-HCC V28

N/A

—

Not risk-adjusted for this model/period.

Not mapped

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

Mapped

HCC 227

Sarcoidosis, Pulmonary Alveol...

RAF 0.398

Code Book Path

Official

D86Sarcoidosis

D86.2Sarcoidosis of lung with sarcoidosis of lymph nodes

Inclusion Terms

Official

ICD-10-CM does not list inclusion terms for D86.2 in this effective period.

Excludes 2

Official

ICD-10-CM does not list Excludes 2 notes for D86.2 in this effective period.

Related Child Codes

Official

D86.0Sarcoidosis of lung

D86.1Sarcoidosis of lymph nodes

D86.3Sarcoidosis of skin

D86.8Sarcoidosis of other sites

D86.9Sarcoidosis, unspecified

Includes

Official

ICD-10-CM does not list Includes notes for D86.2 in this effective period.

Excludes 1

Official

ICD-10-CM does not list Excludes 1 notes for D86.2 in this effective period.

Code First

Official

ICD-10-CM does not list Code First sequencing instructions for D86.2 in this effective period.

Use Additional

Official

ICD-10-CM does not list Use Additional Code instructions for D86.2 in this effective period.

Code Also

Official

ICD-10-CM does not list Code Also instructions for D86.2 in this effective period.

Buddy Documentation Tip

HCC Buddy guidance

Documentation must explicitly confirm granulomatous disease in both lung parenchyma AND lymph nodes, supported by imaging (chest CT showing hilar/mediastinal lymphadenopathy plus pulmonary infiltrates) or biopsy results.

The provider should document the staging (Scaden staging system), current disease activity, pulmonary function test results, and ongoing treatment.

If only one site is involved, a more specific code (D86.0 or D86.1) should be used instead.

MEAT Support

HCC Buddy guidance

The provider should document the staging (Scaden staging system), current disease activity, pulmonary function test results, and ongoing treatment.

If only one site is involved, a more specific code (D86.0 or D86.1) should be used instead.

Audit Caution

HCC Buddy guidance

Do not assign D86.2 if documentation only mentions sarcoidosis in one location

verify both lung and lymph node involvement are explicitly documented. Avoid confusing radiographic hilar lymphadenopathy alone (Stage I sarcoidosis, which is D86.1) with combined lung plus node disease (Stage II). Ensure the diagnosis is active and not just historical

sarcoidosis that has resolved should not be coded.

Common Mistakes

HCC Buddy guidance

D86.0 (Sarcoidosis of lung) captures pulmonary involvement only without lymph node disease.

D86.1 (Sarcoidosis of lymph nodes) captures nodal involvement alone.

D86.89 (Sarcoidosis of other sites) is used for extrapulmonary sarcoidosis such as hepatic or renal involvement.

J84.10 (Pulmonary fibrosis, unspecified) may be confused when sarcoidosis progresses to end-stage fibrotic lung disease.

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 D86.2 an HCC code?

Yes. D86.2 maps to Fibrosis of Lung and Other Chronic Lung Disorders under the V24 model but is not retained in V28.

Code: D86.2
Description: Sarcoidosis of lung with sarcoidosis of lymph nodes
HCC (V28): No CMS-HCC V28 mapping
RAF: —
Billable: Yes
Payment year: 2026

HCC Category Mapping

V24HCC 112, Fibrosis of Lung and Other Chronic Lung Disorders

0.219

ESRDHCC 112, Fibrosis of Lung and Other Chronic Lung Disorders

0.058

RxHCCHCC 227, Sarcoidosis, Pulmonary Alveolar Disorders

0.398

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 D86.2 in the Code Book — tabular path, V28 RAF, and MEAT checklist →

MEAT Criteria for D86.2

For D86.2 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 D86.2 during that encounter, not just copy-forwarded from a problem list.

Coder workflow notes

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What This Code Means

D86.2 is the ICD-10-CM diagnosis code for sarcoidosis of lung with sarcoidosis of lymph nodes. Sarcoidosis is a chronic inflammatory disease where abnormal tissue collections form in the lungs and lymph nodes. This code specifically indicates that a patient has sarcoidosis affecting both the lungs and the lymph nodes (glands) in the chest. D86.2 sits in the ICD-10-CM chapter for diseases of the blood and blood-forming organs and certain disorders involving the immune mechanism (d50-d89), within the section covering certain disorders involving the immune mechanism (d80-d89).

Under the older CMS-HCC V24 model, D86.2 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.

Verify documentation clearly states involvement of both lungs AND lymph nodes; if only one site is affected, use a more specific code (D86.0 for lung only, D86.1 for lymph nodes only). Because D86.2 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 D86.2 sourced directly from the CMS-HCC risk adjustment model files and the CMS ICD-10-CM code set.

Coding Tips

•Verify documentation clearly states involvement of both lungs AND lymph nodes; if only one site is affected, use a more specific code (D86.0 for lung only, D86.1 for lymph nodes only)
•This code is for pulmonary sarcoidosis with hilar lymphadenopathy; do not use if sarcoidosis affects other organs without lung involvement

Clinical Significance

Sarcoidosis involving both the lungs and lymph nodes represents a more extensive disease burden than isolated pulmonary or nodal sarcoidosis. This combination pattern, often presenting as bilateral hilar lymphadenopathy with pulmonary infiltrates, is the most common radiographic presentation of sarcoidosis and carries implications for chronic respiratory compromise. The dual-organ involvement typically requires more aggressive monitoring and treatment strategies including systemic corticosteroids.

Documentation Requirements

✓Documentation must explicitly confirm granulomatous disease in both lung parenchyma AND lymph nodes, supported by imaging (chest CT showing hilar/mediastinal lymphadenopathy plus pulmonary infiltrates) or biopsy results.
✓The provider should document the staging (Scaden staging system), current disease activity, pulmonary function test results, and ongoing treatment.
✓If only one site is involved, a more specific code (D86.0 or D86.1) should be used instead.

Commonly Confused Codes

•D86.0 (Sarcoidosis of lung) captures pulmonary involvement only without lymph node disease.
•D86.1 (Sarcoidosis of lymph nodes) captures nodal involvement alone.
•D86.89 (Sarcoidosis of other sites) is used for extrapulmonary sarcoidosis such as hepatic or renal involvement.
•J84.10 (Pulmonary fibrosis, unspecified) may be confused when sarcoidosis progresses to end-stage fibrotic lung disease.