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

The ICD-10 code for a solitary pulmonary nodule is R91.1. It is used when a CT chest report identifies a nodule ≥6 mm.

How do you code abnormal findings on a CT chest?

Abnormal findings on a CT chest are coded using R91 for lung-specific findings and R93.8 for non-lung chest structures.

ICD-10 Coding for Abnormal CT Chest Findings(R91.1, R91.8, R93.8)

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Learn about ICD-10 coding for abnormal CT chest findings, including solitary pulmonary nodules and mediastinal abnormalities. Ensure accurate documentation and compliance.

Also known as:

Abnormal Computed Tomography of ChestAbnormal Chest CT

Related ICD-10 Code Ranges

Complete code families applicable to Abnormal CT Chest Findings

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 a CT chest report identifies a solitary pulmonary nodule with specific size criteria.	CT report indicating a solitary pulmonary nodule ≥6 mm No prior history of malignancy
R93.8	Abnormal findings on diagnostic imaging of other specified body structures	Use when CT findings are related to non-lung structures such as the mediastinum or chest wall.	CT report indicating abnormal findings in non-lung chest structures

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

Abnormal findings on diagnostic imaging of lungR91

Documentation & Coding Risks

Avoid these common issues when documenting Abnormal CT Chest Findings.

Lack of specificity in documentation leading to incorrect code assignment.

Impact

Clinical: May result in inappropriate follow-up or treatment., Regulatory: Non-compliance with coding standards., Financial: Potential for claim denials or reduced reimbursement.

Mitigation

Ensure detailed documentation of findings, Use structured templates for reporting

Coding lung cancer instead of an abnormal finding code due to unclear documentation.

Impact

Reimbursement: Incorrect coding can lead to denied claims or incorrect DRG assignment., Compliance: Non-compliance with coding guidelines., Data Quality: Inaccurate clinical data affecting patient records.

Mitigation

Ensure the provider documents the impression clearly and confirms malignancy before coding as cancer.

Inaccurate coding of lung findings

Impact

Risk of coding lung cancer instead of abnormal findings due to unclear documentation.

Mitigation

Ensure clear documentation of findings and confirmatory tests before coding malignancy.

Radiology report for abnormal CT chest

Document Abnormal CT Chest Findings in one step.

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 codes3

Coding risks5

FAQs2

ICD-10 Coding for Abnormal CT Chest Findings(R91.1, R91.8, R93.8)

Documentation & Coding Risks

Frequently Asked Questions

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

How do you code abnormal findings on a CT chest?

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