J96.91

Billable

Respiratory failure, unspecified with hypoxia

HCC Category Mapping

V28HCC 213 — Cardio-Respiratory Failure and Shock

0.000

V24HCC 84 — Cardio-Respiratory Failure and Shock

0.402

ESRDHCC 84 — Cardio-Respiratory Failure and Shock

0.000

What This Code Means

A condition where the lungs cannot provide enough oxygen to the blood, but whether it is acute or chronic is not specified.

Coding Tips

•Use only when respiratory failure with hypoxia is documented but the acuity (acute vs. chronic) cannot be determined from the record
•Query the provider to clarify the onset and duration to assign a more specific code (J96.01 or J96.11)

Clinical Significance

Respiratory failure with hypoxia indicates the lungs cannot adequately oxygenate the blood, signaling severe pulmonary compromise that directly increases mortality risk. This diagnosis is critical for risk adjustment as it reflects a high-acuity condition requiring supplemental oxygen or mechanical ventilation. The unspecified acuity limits specificity and should prompt a provider query to distinguish acute from chronic presentation.

Documentation Requirements

✓Provider documentation explicitly stating 'respiratory failure with hypoxia'
✓Oxygen saturation levels or arterial blood gas results demonstrating hypoxemia (PaO2 < 60 mmHg or SpO2 < 90%)
✓Clinical context including underlying etiology (e.g., pneumonia, COPD exacerbation, pulmonary embolism)
✓Current treatment plan including supplemental oxygen delivery method and flow rate
✓Whether the condition is acute, chronic, or acute-on-chronic (to support specificity query)

Commonly Confused Codes

J96.01 — Acute respiratory failure with hypoxia: use when acuity is clearly acute onset J96.11 — Chronic respiratory failure with hypoxia: use when the condition is long-standing and chronic J96.21 — Acute and chronic respiratory failure with hypoxia: use for acute-on-chronic presentations J96.90 — Respiratory failure, unspecified, unspecified whether with hypoxia or hypercapnia: even less specific, lacks the hypoxia qualifier R09.02 — Hypoxemia: indicates low blood oxygen but does NOT meet the threshold of respiratory failure