What is ICD-10 code J95.851?

J95.851 is the ICD-10-CM diagnosis code for Ventilator associated pneumonia. A lung infection (pneumonia) that develops in patients who are on mechanical ventilation (breathing machines) for at least 48 hours. It belongs to the ICD-10-CM chapter for diseases of the respiratory system (j00-j99). J95.851 is a billable code, meaning it can be reported on a claim as a primary or secondary diagnosis when supported by documentation. J95.851 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. J95.851 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. J95.851 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 J95.851 map to under V28?

J95.851 maps to CMS-HCC V28 HCC 211 (Respirator Dependence/Tracheostomy Status/Complications). The category numbers, labels, and conditions come from the CMS-HCC V28 model file for payment year 2026.

2026 ICD-10-CM J95.851: Ventilator associated

J95.851 maps to CMS-HCC V28 211. A source-labeled RAF reference is available. Documentation must support MEAT. MEAT criteria · RAF Calculator · HCC coding software

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Code lookupJ95.851Effective periodFY2026 Apr Update (Apr 1-Sep 30)

FY 2026 Apr update / Diseases of the respiratory system (J00-J99) / Intraoperative and postprocedural complications and disorders of respiratory system, not elsewhere classified (J95)

J95.851

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

Ventilator associated pneumonia

A lung infection (pneumonia) that develops in patients who are on mechanical ventilation (breathing machines) for at least 48 hours.

Buddy Insight

Ventilator-associated pneumonia is a hospital-acquired infection developing in patients on mechanical ventilation for 48 hours or more.

CMS-HCC V28

Mapped

HCC 211

Respirator Dependence/Tracheo...

Code-level coefficient reference

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

N/A

—

Not risk-adjusted for this model/period.

Not mapped

ESRD/PACE

Mapped

HCC 114

Aspiration and Specified Bact...

Code-level coefficient reference

RXHCC

N/A

—

Not risk-adjusted for this model/period.

Not mapped

Code Book Path

Official

J95.8Other intraoperative and postprocedural complications and disorders of respiratory system, not elsewhere classified

J95.85Complication of respirator [ventilator]

J95.851Ventilator associated pneumonia

Inclusion Terms

Official

Ventilator associated pneumonitis

Excludes 2

Official

ICD-10-CM does not list Excludes 2 notes for J95.851 in this effective period.

Related Child Codes

Official

J95.850Mechanical complication of respirator

J95.859Other complication of respirator [ventilator]

Includes

Official

ICD-10-CM does not list Includes notes for J95.851 in this effective period.

Excludes 1

Official

ventilator lung in newborn (P27.8)

Code First

Official

ICD-10-CM does not list Code First sequencing instructions for J95.851 in this effective period.

Use Additional

Official

code to identify the organism, if known (B95.-, B96.-, B97.-)

Code Also

Official

ICD-10-CM does not list Code Also instructions for J95.851 in this effective period.

Buddy Documentation Tip

HCC Buddy guidance

Documentation that the patient was on mechanical ventilation for at least 48 hours before pneumonia onset

Clinical criteria for pneumonia (new infiltrate on imaging, fever, leukocytosis, purulent secretions)

Respiratory culture results identifying the causative organism (tracheal aspirate, BAL, or protected specimen brush)

Provider documentation explicitly stating 'ventilator-associated pneumonia'

MEAT Support

HCC Buddy guidance

Documentation that the patient was on mechanical ventilation for at least 48 hours before pneumonia onset

Clinical criteria for pneumonia (new infiltrate on imaging, fever, leukocytosis, purulent secretions)

Respiratory culture results identifying the causative organism (tracheal aspirate, BAL, or protected specimen brush)

Provider documentation explicitly stating 'ventilator-associated pneumonia'

Audit Caution

HCC Buddy guidance

Coding as generic hospital-acquired pneumonia without specifying the ventilator association

Applying this code when pneumonia develops before 48 hours of mechanical ventilation — timing criteria must be met

Failing to identify and code the specific causative organism separately (e.g., B96.5 for Pseudomonas)

Using this code for community-acquired pneumonia that happens to be present in a ventilated patient

Common Mistakes

HCC Buddy guidance

J95.850 — Mechanical complication of respirator is an equipment malfunction, not an infection

J18.9 — Pneumonia unspecified does not capture the ventilator association

J15.9 — Bacterial pneumonia unspecified could be used for the organism type but does not capture ventilator association

J95.859 — Other complication of respirator is for non-specific ventilator complications, not VAP specifically

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 J95.851 an HCC code?

Yes. J95.851 (Ventilator associated pneumonia) maps to HCC 211, Respirator Dependence/Tracheostomy Status/Complications under the CMS-HCC V28 risk adjustment model, with a source-labeled community non-dual aged reference coefficient of 0.879. 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: J95.851 is billable and maps to V28 HCC 211, Respirator Dependence/Tracheostomy Status/Complications. Open it in the Code Book for the tabular path, RAF, and MEAT checklist.

Code: J95.851
Description: Ventilator associated pneumonia
HCC (V28): HCC 211 — Respirator Dependence/Tracheostomy Status/Complications
RAF reference coefficient: 0.879
Billable: Yes
Payment year: 2026

HCC Category Mapping

V28HCC 211, Respirator Dependence/Tracheostomy Status/Complications

0.879

ESRDHCC 114, Aspiration and Specified Bacterial Pneumonias

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 J95.851 in the Code Book — tabular path, V28 RAF reference, and MEAT checklist →

MEAT Criteria for J95.851

For J95.851 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 J95.851 during that encounter, not just copy-forwarded from a problem list.

Coder workflow notes

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What This Code Means

J95.851 is the ICD-10-CM diagnosis code for ventilator associated pneumonia. A lung infection (pneumonia) that develops in patients who are on mechanical ventilation (breathing machines) for at least 48 hours. J95.851 sits in the ICD-10-CM chapter for diseases of the respiratory system (j00-j99), within the section covering intraoperative and postprocedural complications and disorders of respiratory system, not elsewhere classified (j95).

Under the CMS-HCC V28 risk adjustment model, J95.851 maps to Respirator Dependence/Tracheostomy Status/Complications (HCC 211) with a source-labeled community, non-dual, aged reference coefficient of 0.879. No V24 mapping is shown for J95.851; use the applicable model and payment year when reviewing the V28 mapping. 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. 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 organism if identified through culture or testing for more complete coding. Because J95.851 maps to an HCC category, the provider's documentation must satisfy MEAT criteria (Monitor, Evaluate, Assess, or Treat) before the diagnosis is used for risk adjustment. 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 J95.851 sourced directly from the CMS-HCC risk adjustment model files and the CMS ICD-10-CM code set.

Coding Tips

•Document the specific organism if identified through culture or testing for more complete coding
•Verify the patient was on ventilator support for at least 48 hours before pneumonia onset

Clinical Significance

Ventilator-associated pneumonia is a hospital-acquired infection developing in patients on mechanical ventilation for 48 hours or more. It is one of the most common and serious ICU-acquired infections, significantly increasing mortality, length of stay, and healthcare costs. This diagnosis indicates both the ventilator dependence and the infectious complication, representing maximal respiratory care complexity.

Documentation Requirements

✓Documentation that the patient was on mechanical ventilation for at least 48 hours before pneumonia onset
✓Clinical criteria for pneumonia (new infiltrate on imaging, fever, leukocytosis, purulent secretions)
✓Respiratory culture results identifying the causative organism (tracheal aspirate, BAL, or protected specimen brush)
✓Provider documentation explicitly stating 'ventilator-associated pneumonia'
✓Antibiotic regimen and treatment duration plan

Excludes 1, Do NOT code together

ventilator lung in newborn (P27.8)

Use Additional Code

code to identify the organism, if known (B95.-, B96.-, B97.-)

Commonly Confused Codes

•J95.850: Mechanical complication of respirator is an equipment malfunction, not an infection
•J18.9: Pneumonia unspecified does not capture the ventilator association
•J15.9: Bacterial pneumonia unspecified could be used for the organism type but does not capture ventilator association
•J95.859: Other complication of respirator is for non-specific ventilator complications, not VAP specifically