ICD-10 Diagnosis Code R91.1

Solitary pulmonary nodule

Diagnosis Code R91.1

ICD-10: R91.1
Short Description: Solitary pulmonary nodule
Long Description: Solitary pulmonary nodule
This is the 2017 version of the ICD-10-CM diagnosis code R91.1

Code Classification
  • Symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified
    • Abnormal findings on diagnostic imaging and in function studies, without diagnosis (R90-R94)
      • Abnormal findings on diagnostic imaging of lung (R91)

Information for Medical Professionals

According to ICD-10-CM guidelines this code should not to be used as a principal diagnosis code when a related definitive diagnosis has been established.
Diagnostic Related Groups
The diagnosis code R91.1 is grouped in the following Diagnostic Related Group(s) (MS-DRG v33.0)


Convert to ICD-9 Additional informationCallout TooltipGeneral Equivalence Map
The ICD-10 and ICD-9 GEMs are used to facilitate linking between the diagnosis codes in ICD-9-CM and the new ICD-10-CM code set. The GEMs are the raw material from which providers, health information vendors and payers can derive specific applied mappings to meet their needs.
  • 793.11 - Solitary pulmonry nodule

  • Coin lesion
  • Coin lesion of lung
  • Pulmonary nodule following infection by Coccidioides
  • Solitary nodule of lung

Index of Diseases and Injuries
References found for the code R91.1 in the Index of Diseases and Injuries:

Information for Patients

Lung Diseases

When you breathe, your lungs take in oxygen from the air and deliver it to the bloodstream. The cells in your body need oxygen to work and grow. During a normal day, you breathe nearly 25,000 times. People with lung disease have difficulty breathing. Millions of people in the U.S. have lung disease. If all types of lung disease are lumped together, it is the number three killer in the United States.

The term lung disease refers to many disorders affecting the lungs, such as asthma, COPD, infections like influenza, pneumonia and tuberculosis, lung cancer, and many other breathing problems. Some lung diseases can lead to respiratory failure.

Dept. of Health and Human Services Office on Women's Health

  • Alveolar abnormalities
  • Blood gases
  • Breath sounds
  • Chemical pneumonitis
  • Chest tube insertion
  • Coughing up blood
  • Lung disease
  • Lung PET scan
  • Pulmonary edema
  • Pulmonary function tests
  • Solitary pulmonary nodule

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