What is the ICD-10 code for a solitary pulmonary nodule?

The ICD-10 code for a solitary pulmonary nodule is R91.1, used when imaging confirms a single nodule in the lung.

How do you code multiple pulmonary nodules?

Use ICD-10 code R91.8 for multiple pulmonary nodules or non-specific findings on lung imaging.

ICD-10 Coding for Pulmonary Nodule(R91.1, D02.2, R91.8)

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Learn about ICD-10 coding for pulmonary nodules, including solitary and multiple nodules, with documentation requirements and coding tips.

Also known as:

Lung NodulePulmonary Lesion

Related ICD-10 Code Ranges

Complete code families applicable to Pulmonary Nodule

R00-R99Primary Range

Symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified

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Code Comparison: When to Use Each Code

Compare key differences between these codes to ensure accurate selection

Code	Description	When to Use	Key Documentation
R91.1	Solitary pulmonary nodule	Use when imaging confirms a single nodule in the lung.	CT scan showing a solitary nodule less than 3 cm Documentation of nodule size and location
R91.8	Other nonspecific abnormal finding of lung field	Use for multiple nodules or when findings are non-specific.	CT scan showing multiple nodules Documentation of nodule characteristics
D02.2	Carcinoma in situ of bronchus and lung	Use when biopsy confirms carcinoma in situ.	Biopsy report confirming carcinoma in situ Pathology report

Primary ICD-10-CM Codes

Solitary pulmonary nodule

R91.1Billable

Differential Codes

Alternative codes to consider when ruling out similar conditions

Other nonspecific abnormal finding of lung fieldR91.8

Solitary pulmonary noduleR91.1

Malignant neoplasm of bronchus and lungC34

Documentation & Coding Risks

Avoid these common issues when documenting Pulmonary Nodule.

Omitting nodule size in documentation

Impact

Clinical: Inadequate clinical assessment, Regulatory: Non-compliance with coding standards, Financial: Potential for denied claims

Mitigation

Use structured templates, Double-check imaging reports

Coding multiple nodules as solitary

Impact

Reimbursement: Incorrect DRG assignment, Compliance: Potential audit risk, Data Quality: Inaccurate clinical data

Mitigation

Use R91.8 for multiple nodules.

Documenting 'probable metastasis' without histology

Impact

Reimbursement: Incorrect DRG assignment, Compliance: Non-compliance with coding guidelines, Data Quality: Misleading clinical data

Mitigation

Query provider for confirmation via biopsy or PET-CT.

Nodule Documentation

Impact

Inadequate documentation of nodule characteristics

Mitigation

Implement structured reporting templates

Frequently Asked Questions

Documentation requirements, coding pitfalls and FAQs for conditions coded with R91.1.

Primary Code

R91.1

Solitary pulmonary nodule

Quick Navigation

ICD-10 codes6

Coding risks4

FAQs2

ICD-10 Coding for Pulmonary Nodule(R91.1, D02.2, R91.8)

Documentation & Coding Risks

Frequently Asked Questions

What is the ICD-10 code for a solitary pulmonary nodule?

How do you code multiple pulmonary nodules?

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