2024 ICD-10-CM Diagnosis Code C34.91

Malignant neoplasm of unspecified part of right bronchus or lung

  • C34.91 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
  • Short description: Malignant neoplasm of unsp part of right bronchus or lung
  • The 2024 edition of ICD-10-CM C34.91 became effective on October 1, 2023.
  • This is the American ICD-10-CM version of C34.91 – other international versions of ICD-10 C34.91 may differ.

The following code(s) above C34.91 contain annotation back-references

 that may be applicable to C34.91:

  • C00-D49  Neoplasms
  • C30-C39  Malignant neoplasms of respiratory and intrathoracic organs
  • C34  Malignant neoplasm of bronchus and lung

Approximate Synonyms

  • Adenocarcinoma of bilateral lungs
  • Adenocarcinoma of right lung
  • Adenocarcinoma, bilateral lungs
  • Adenocarcinoma, right lung
  • Bronchioloalveolar carcinoma of right lung
  • Bronchoalveolar carcinoma, right lung
  • Cancer of the right lung, large cell
  • Cancer of the right lung, squamous cell
  • Cancer, right lung
  • Large cell carcinoma of bilateral lungs
  • Large cell carcinoma of right lung
  • Large cell carcinoma, bilateral lungs
  • Lung cancer, bilateral lungs
  • Primary malignant neoplasm of bilateral lungs
  • Primary malignant neoplasm of right lung
  • Primary small cell carcinoma of bilateral lungs
  • Primary small cell carcinoma of right lung
  • Primary squamous cell carcinoma of bilateral lungs
  • Small cell carcinoma, bilateral lungs
  • Small cell carcinoma, right lung
  • Squamous cell carcinoma of right lung
  • Squamous cell carcinoma, bilateral lungs

ICD-10-CM C34.91 is grouped within Diagnostic Related Group(s) (MS-DRG v41.0):

  • 180 Respiratory neoplasms with mcc
  • 181 Respiratory neoplasms with cc
  • 182 Respiratory neoplasms without cc/mcc

Convert C34.91 to ICD-9-CMCode History

  • 2016 (effective 10/1/2015): New code (first year of non-draft ICD-10-CM)
  • 2017 (effective 10/1/2016): No change
  • 2018 (effective 10/1/2017): No change
  • 2019 (effective 10/1/2018): No change
  • 2020 (effective 10/1/2019): No change
  • 2021 (effective 10/1/2020): No change
  • 2022 (effective 10/1/2021): No change
  • 2023 (effective 10/1/2022): No change
  • 2024 (effective 10/1/2023): No change