2021

  1. ICD-10-CM Codes
    2. ›
  2. C00-D49 Neoplasms
    3. ›
  3. C76-C80 Malignant neoplasms of ill-defined, other secondary and unspecified sites
    4. ›
  4. C76- Malignant neoplasm of other and ill-defined sites
    5. ›
  5. 2021 ICD-10-CM Diagnosis Code C76.1

2021 ICD-10-CM Diagnosis Code C76.1

Malignant neoplasm of thorax

    2016 2017 2018 2019 2020 2021 Billable/Specific Code
  • C76.1 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
  • The 2021 edition of ICD-10-CM C76.1 became effective on October 1, 2020.
  • This is the American ICD-10-CM version of C76.1 - other international versions of ICD-10 C76.1 may differ.
Applicable To
  • Intrathoracic malignant neoplasm NOS
  • Malignant neoplasm of axilla NOS
  • Thoracic malignant neoplasm NOS
The following code(s) above C76.1 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 C76.1:
  • C00-D49
    2021 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
  • C76
    ICD-10-CM Diagnosis Code C76

    Malignant neoplasm of other and ill-defined sites

      2016 2017 2018 2019 2020 2021 Non-Billable/Non-Specific Code
    Type 1 Excludes
    • malignant neoplasm of female genitourinary tract NOS (C57.9)
    • malignant neoplasm of male genitourinary tract NOS (C63.9)
    • malignant neoplasm of lymphoid, hematopoietic and related tissue (C81-C96)
    • malignant neoplasm of skin (C44.-)
    • malignant neoplasm of unspecified site NOS (C80.1)
    Malignant neoplasm of other and ill-defined sites
Approximate Synonyms
  • Cancer of the chest wall
  • Cancer of the chest wall, adenocarcinoma
  • Cancer of the chest wall, squamous cell
  • Cancer of the chest wall, undifferentiated lg cell
  • Primary adenocarcinoma of chest wall
  • Primary malignant neoplasm of chest wall
  • Primary squamous cell carcinoma of chest wall
  • Primary undifferentiated large cell malignancy of chest wall
Clinical Information
  • A primary or metastatic malignant neoplasm affecting the tissues of the thorax.
ICD-10-CM C76.1 is grouped within Diagnostic Related Group(s) (MS-DRG v38.0):
  • 180 Respiratory neoplasms with mcc
  • 181 Respiratory neoplasms with cc
  • 182 Respiratory neoplasms without cc/mcc

Convert C76.1 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
  • 2020 (effective 10/1/2019): No change
  • 2021 (effective 10/1/2020): No change
Code annotations containing back-references to C76.1:
  • Type 1 Excludes: C39
    , C39
    ICD-10-CM Diagnosis Code C39

    Malignant neoplasm of other and ill-defined sites in the respiratory system and intrathoracic organs

      2016 2017 2018 2019 2020 2021 Non-Billable/Non-Specific Code
    Type 1 Excludes
    • intrathoracic malignant neoplasm NOS (C76.1)
    • thoracic malignant neoplasm NOS (C76.1)
    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)
    ICD-10-CM Diagnosis Code C39

    Malignant neoplasm of other and ill-defined sites in the respiratory system and intrathoracic organs

      2016 2017 2018 2019 2020 2021 Non-Billable/Non-Specific Code
    Type 1 Excludes
    • intrathoracic malignant neoplasm NOS (C76.1)
    • thoracic malignant neoplasm NOS (C76.1)
    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)
ICD-10-CM Codes Adjacent To C76.1
C7B.00 …… unspecified site
C7B.01 …… of distant lymph nodes
C7B.02 …… of liver
C7B.03 …… of bone
C7B.04 …… of peritoneum
C7B.09 …… of other sites
C7B.1 Secondary Merkel cell carcinoma
C7B.8 Other secondary neuroendocrine tumors
C76 Malignant neoplasm of other and ill-defined sites
C76.0 Malignant neoplasm of head, face and neck
C76.1 Malignant neoplasm of thorax
C76.2 Malignant neoplasm of abdomen
C76.3 Malignant neoplasm of pelvis
C76.4 Malignant neoplasm of upper limb
C76.40 Malignant neoplasm of unspecified upper limb
C76.41 Malignant neoplasm of right upper limb
C76.42 Malignant neoplasm of left upper limb
C76.5 Malignant neoplasm of lower limb
C76.50 Malignant neoplasm of unspecified lower limb
C76.51 Malignant neoplasm of right lower limb
C76.52 Malignant neoplasm of left lower limb

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

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