R91.1 SOLITARY PULMONARY NODULE

Code Information

Diagnosis Code: R91.1
Short Description: Solitary pulmonary nodule
Long Description: Solitary pulmonary nodule
Code Version: 2025 ICD-10-CM

The code R91.1 is VALID for claim submission

Code Classification

Symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00–R99)
- Abnormal findings on diagnostic imaging and in function studies, without diagnosis (R90-R94)
  - Abnormal findings on diagnostic imaging of lung (R91)

Synonyms

Coin lesion of lung
Infection of lung caused by Pneumocystis
Nodule of lung
Pneumocystosis
Pulmonary nodule caused by Pneumocystis
Pulmonary nodule following infection by Coccidioides
Solitary nodule of lung

Diagnostic Related Group(s)

The code R91.1 is grouped in the following Diagnostic Related Group(s) MS-DRG V42.0

Other Respiratory System Diagnoses With Mcc (205)
Other Respiratory System Diagnoses Without Mcc (206)

References to Index of Diseases and Injuries

The code R91.1 has the following ICD-10-CM references to the Index of Diseases and Injuries

Inclusion Terms:
- Coin lesion lung
- Solitary pulmonary nodule, subsegmental branch of the bronchial tree

Crosswalk Information

ICD-10 Code		ICD-9 Code	ICD-9 Description
R91.1		793.11	Solitary pulmonry nodule

This ICD-10 to ICD-9 data is based on the 2018 General Equivalency Mapping (GEM) files published by the Centers for Medicare & Medicaid Services (CMS) for informational purposes only. The data is not an ICD-10 conversion tool and doesn’t guarantee clinical accuracy.

Similar Codes

ICD-10 Code	ICD-10 Description
R91	Abnormal findings on diagnostic imaging of lung
R91.8	Other nonspecific abnormal finding of lung field

This page was last updated on: 10/1/2024

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