ICD-10-CM Codes
C00-D49
C7B-C7B
C7B-
2023 ICD-10-CM Diagnosis Code C7B.04

2023 ICD-10-CM Diagnosis Code C7B.04

Secondary carcinoid tumors of peritoneum

2016

2017

2018

2019

2020

2021

2022

2023

Billable/Specific Code

C7B.04 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
The 2023 edition of ICD-10-CM C7B.04 became effective on October 1, 2022.
This is the American ICD-10-CM version of C7B.04 - other international versions of ICD-10 C7B.04 may differ.

Applicable To

Mesentary metastasis of carcinoid tumor

The following code(s) above C7B.04 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 C7B.04:

C00-D49
2023 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
C7B
ICD-10-CM Diagnosis Code C7B
Secondary neuroendocrine tumors
Use Additional
- code to identify any functional activity
Secondary neuroendocrine tumors

Approximate Synonyms

Carcinoid tumor metastatic to peritoneum
Neuroendocrine tumor, metastatic to peritoneum
Secondary carcinoid tumor of peritoneum
Secondary neuroendocrine carcinoma of peritoneum

ICD-10-CM C7B.04 is grouped within Diagnostic Related Group(s) (MS-DRG v40.0):

374 Digestive malignancy with mcc
375 Digestive malignancy with cc
376 Digestive malignancy without cc/mcc

Convert C7B.04 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
2022 (effective 10/1/2021): No change
2023 (effective 10/1/2022): No change

Code annotations containing back-references to C7B.04:

Type 1 Excludes: C77
, C78

ICD-10-CM Diagnosis Code C77
Secondary and unspecified malignant neoplasm of lymph nodes
Type 1 Excludes
- malignant neoplasm of lymph nodes, specified as primary (C81-C86, C88, C96.-)
- mesentary metastasis of carcinoid tumor (C7B.04)
- secondary carcinoid tumors of distant lymph nodes (C7B.01)
ICD-10-CM Diagnosis Code C78
Secondary malignant neoplasm of respiratory and digestive organs
Type 1 Excludes
- secondary carcinoid tumors of liver (C7B.02)
- secondary carcinoid tumors of peritoneum (C7B.04)
Type 2 Excludes
- lymph node metastases (C77.0)

Diagnosis Index entries containing back-references to C7B.04:

Tumor - see also Neoplasm, unspecified behavior, by site
- carcinoid D3A.00
  ICD-10-CM Diagnosis Code D3A.00
  Benign carcinoid tumor of unspecified site
  2016 2017 2018 2019 2020 2021 2022 2023 Billable/Specific Code
  Applicable To
  Carcinoid tumor NOS
  - secondary C7B.00
    ICD-10-CM Diagnosis Code C7B.00
    Secondary carcinoid tumors, unspecified site
    2016 2017 2018 2019 2020 2021 2022 2023 Billable/Specific Code
    - peritoneum C7B.04
  - mesentary metastasis C7B.04
- secondary - see Neoplasm, secondary, by site
  - carcinoid C7B.00
    ICD-10-CM Diagnosis Code C7B.00
    Secondary carcinoid tumors, unspecified site
    2016 2017 2018 2019 2020 2021 2022 2023 Billable/Specific Code
    - peritoneum C7B.04

ICD-10-CM Codes Adjacent To C7B.04

C7A.096 Malignant carcinoid tumor of the hindgut, unspecified

C7A.098 Malignant carcinoid tumors of other sites

C7A.1 Malignant poorly differentiated neuroendocrine tumors

C7A.8 Other malignant neuroendocrine tumors

C7B Secondary neuroendocrine tumors

C7B.0 Secondary carcinoid tumors

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

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

2023 ICD-10-CM Diagnosis Code C7B.04

Secondary carcinoid tumors of peritoneum

Neoplasms

Secondary neuroendocrine tumors

Secondary and unspecified malignant neoplasm of lymph nodes

Secondary malignant neoplasm of respiratory and digestive organs

Benign carcinoid tumor of unspecified site

Secondary carcinoid tumors, unspecified site

Secondary carcinoid tumors, unspecified site