2019 ICD-10-CM Diagnosis Code C34.90

Malignant neoplasm of unspecified part of unspecified bronchus or lung

    2016 2017 2018 2019 Billable/Specific Code
  • C34.90 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 unsp bronchus or lung
  • The 2019 edition of ICD-10-CM C34.90 became effective on October 1, 2018.
  • This is the American ICD-10-CM version of C34.90 - other international versions of ICD-10 C34.90 may differ.
Applicable To
  • Lung cancer NOS
The following code(s) above C34.90 contain annotation back-references
Annotation Back-References
In this context, annotation back-references refer to codes that contain:
  • Applicable To annotations, or
  • Code Also annotations, or
  • Code First annotations, or
  • Excludes1 annotations, or
  • Excludes2 annotations, or
  • Includes annotations, or
  • Note annotations, or
  • Use Additional annotations
that may be applicable to C34.90:
  • C00-D49
    2019 ICD-10-CM Range C00-D49

    Neoplasms

    Note
    • Functional activity
    • All neoplasms are classified in this chapter, whether they are functionally active or not. An additional code from Chapter 4 may be used, to identify functional activity associated with any neoplasm.
    • Morphology [Histology]
    • Chapter 2 classifies neoplasms primarily by site (topography), with broad groupings for behavior, malignant, in situ, benign, etc. The Table of Neoplasms should be used to identify the correct topography code. In a few cases, such as for malignant melanoma and certain neuroendocrine tumors, the morphology (histologic type) is included in the category and codes.
    • Primary malignant neoplasms overlapping site boundaries
    • A primary malignant neoplasm that overlaps two or more contiguous (next to each other) sites should be classified to the subcategory/code .8 ('overlapping lesion'), unless the combination is specifically indexed elsewhere. For multiple neoplasms of the same site that are not contiguous, such as tumors in different quadrants of the same breast, codes for each site should be assigned.
    • Malignant neoplasm of ectopic tissue
    • Malignant neoplasms of ectopic tissue are to be coded to the site mentioned, e.g., ectopic pancreatic malignant neoplasms are coded to pancreas, unspecified (C25.9).
    Neoplasms
  • C30-C39
    2019 ICD-10-CM Range C30-C39

    Malignant neoplasms of respiratory and intrathoracic organs

    Includes
    • malignant neoplasm of middle ear
    Type 1 Excludes
    Malignant neoplasms of respiratory and intrathoracic organs
  • C34
    ICD-10-CM Diagnosis Code C34

    Malignant neoplasm of bronchus and lung

      2016 2017 2018 2019 Non-Billable/Non-Specific Code
    Type 1 Excludes
    • Kaposi's sarcoma of lung (C46.5-)
    • malignant carcinoid tumor of the bronchus and lung (C7A.090)
    Use Additional
    • code to identify:
    • exposure to environmental tobacco smoke (Z77.22)
    • exposure to tobacco smoke in the perinatal period (P96.81)
    • history of tobacco dependence (Z87.891)
    • occupational exposure to environmental tobacco smoke (Z57.31)
    • tobacco dependence (F17.-)
    • tobacco use (Z72.0)
    Malignant neoplasm of bronchus and lung
Approximate Synonyms
  • Bronchial cancer
  • Bronchioloalveolar carcinoma - disorder
  • Bronchoalveolar cancer of the lung
  • Cancer of the lung
  • Cancer of the lung, adenocarcinoma
  • Cancer of the lung, adenocarcinoma, stage 1
  • Cancer of the lung, adenocarcinoma, stage 2
  • Cancer of the lung, adenocarcinoma, stage 3
  • Cancer of the lung, adenocarcinoma, stage 4
  • Cancer of the lung, large cell
  • Cancer of the lung, large cell, stage 1
  • Cancer of the lung, large cell, stage 2
  • Cancer of the lung, large cell, stage 3
  • Cancer of the lung, large cell, stage 4
  • Cancer of the lung, non small cell, stage 1
  • Cancer of the lung, non small cell, stage 2
  • Cancer of the lung, non small cell, stage 3
  • Cancer of the lung, non small cell, stage 4
  • Cancer of the lung, small cell
  • Cancer of the lung, small cell, stage 1
  • Cancer of the lung, small cell, stage 2
  • Cancer of the lung, small cell, stage 3
  • Cancer of the lung, small cell, stage 4
  • Cancer of the lung, squamous cell
  • Cancer of the lung, squamous cell, stage 1
  • Cancer of the lung, squamous cell, stage 2
  • Cancer of the lung, squamous cell, stage 3
  • Cancer of the lung, squamous cell, stage 4
  • Cancer, lung, non small cell
  • Eaton-lambert syndrome due to small cell carcinoma of lung
  • Eaton-lambert syndrome due to small cell lung cancer
  • Extensive stage primary small cell carcinoma of lung
  • Extensive stage small cell carcinoma, lung
  • Large cell carcinoma of lung
  • Large cell carcinoma of lung, tnm stage 1
  • Large cell carcinoma of lung, tnm stage 2
  • Large cell carcinoma of lung, tnm stage 3
  • Large cell carcinoma of lung, tnm stage 4
  • Limited stage primary small cell carcinoma of lung
  • Limited stage small cell carcinoma, lung
  • Lung cancer metastatic to unspecified site
  • Metastasis from malignant tumor of lung
  • Non-small cell carcinoma of lung, tnm stage 1
  • Non-small cell carcinoma of lung, tnm stage 2
  • Non-small cell carcinoma of lung, tnm stage 3
  • Non-small cell carcinoma of lung, tnm stage 4
  • Non-small cell lung cancer
  • Primary adenocarcinoma of lung
  • Primary adenocarcinoma of lung, stage 1
  • Primary adenocarcinoma of lung, stage 2
  • Primary adenocarcinoma of lung, stage 3
  • Primary adenocarcinoma of lung, stage 4
  • Primary malignant neoplasm of bronchus
  • Primary malignant neoplasm of lung
  • Primary small cell malignant neoplasm of lung, stage 1
  • Primary small cell malignant neoplasm of lung, stage 2
  • Primary small cell malignant neoplasm of lung, stage 3
  • Primary small cell malignant neoplasm of lung, stage 4
  • Small cell carcinoma of lung
  • Squamous cell carcinoma of lung
  • Squamous cell carcinoma of lung, tnm stage 1
  • Squamous cell carcinoma of lung, tnm stage 2
  • Squamous cell carcinoma of lung, tnm stage 3
  • Squamous cell carcinoma of lung, tnm stage 4
Clinical Information
  • A carcinoma originating in the lung. Lung carcinomas usually arise from the epithelium that lines the bronchial tree (bronchogenic carcinomas), and are classified as small cell or non-small cell carcinomas. Non-small cell lung carcinomas are usually adenocarcinomas, squamous cell carcinomas, or large cell carcinomas. Metastatic carcinomas to the lung are also common, and can be difficult to distinguish from primary tumors.
  • Cancer that forms in tissues of the lung, usually in the cells lining air passages. The two main types are small cell lung cancer and non-small cell lung cancer. These types are diagnosed based on how the cells look under a microscope.
ICD-10-CM C34.90 is grouped within Diagnostic Related Group(s) (MS-DRG v36.0):
  • 180 Respiratory neoplasms with mcc
  • 181 Respiratory neoplasms with cc
  • 182 Respiratory neoplasms without cc/mcc

Convert C34.90 to ICD-9-CM

Code 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

Diagnosis Index entries containing back-references to C34.90:

ICD-10-CM Codes Adjacent To C34.90
C34.2 Malignant neoplasm of middle lobe, bronchus or lung
C34.3 Malignant neoplasm of lower lobe, bronchus or lung
C34.30 Malignant neoplasm of lower lobe, unspecified bronchus or lung
C34.31 Malignant neoplasm of lower lobe, right bronchus or lung
C34.32 Malignant neoplasm of lower lobe, left bronchus or lung
C34.8 Malignant neoplasm of overlapping sites of bronchus and lung
C34.80 Malignant neoplasm of overlapping sites of unspecified bronchus and lung
C34.81 Malignant neoplasm of overlapping sites of right bronchus and lung
C34.82 Malignant neoplasm of overlapping sites of left bronchus and lung
C34.9 Malignant neoplasm of unspecified part of bronchus or lung
C34.90 Malignant neoplasm of unspecified part of unspecified bronchus or lung
C34.91 Malignant neoplasm of unspecified part of right bronchus or lung
C34.92 Malignant neoplasm of unspecified part of left bronchus or lung
C37 Malignant neoplasm of thymus
C38 Malignant neoplasm of heart, mediastinum and pleura
C38.0 Malignant neoplasm of heart
C38.1 Malignant neoplasm of anterior mediastinum
C38.2 Malignant neoplasm of posterior mediastinum
C38.3 Malignant neoplasm of mediastinum, part unspecified
C38.4 Malignant neoplasm of pleura
C38.8 Malignant neoplasm of overlapping sites of heart, mediastinum and pleura

Reimbursement claims with a date of service on or after October 1, 2015 require the use of ICD-10-CM codes.