ICD-10-CM Codes
C00-D49 Neoplasms
C45-C49 Malignant neoplasms of mesothelial and soft tissue
C49- Malignant neoplasm of other connective and soft tissue

2018 ICD-10-CM Diagnosis Code C49.A5

Gastrointestinal stromal tumor of rectum

2017 - New Code

2018

Billable/Specific Code

C49.A5 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
The 2018 edition of ICD-10-CM C49.A5 became effective on October 1, 2017.
This is the American ICD-10-CM version of C49.A5 - other international versions of ICD-10 C49.A5 may differ.

The following code(s) above C49.A5 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 C49.A5:

C00-D49
2018 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
C49
ICD-10-CM Diagnosis Code C49
Malignant neoplasm of other connective and soft tissue
Includes
- malignant neoplasm of blood vessel
- malignant neoplasm of bursa
- malignant neoplasm of cartilage
- malignant neoplasm of fascia
- malignant neoplasm of fat
- malignant neoplasm of ligament, except uterine
- malignant neoplasm of lymphatic vessel
- malignant neoplasm of muscle
- malignant neoplasm of synovia
- malignant neoplasm of tendon (sheath)
Type 1 Excludes
- malignant neoplasm of cartilage (of):
- articular (C40-C41)
- larynx (C32.3)
- nose (C30.0)
- malignant neoplasm of connective tissue of breast (C50.-)
Type 2 Excludes
- Kaposi's sarcoma of soft tissue (C46.1)
- malignant neoplasm of heart (C38.0)
- malignant neoplasm of peripheral nerves and autonomic nervous system (C47.-)
- malignant neoplasm of peritoneum (C48.2)
- malignant neoplasm of retroperitoneum (C48.0)
- malignant neoplasm of uterine ligament (C57.3)
- mesothelioma (C45.-)
Malignant neoplasm of other connective and soft tissue

ICD-10-CM C49.A5 is grouped within Diagnostic Related Group(s) (MS-DRG v35.0):

542 Pathological fractures and musculoskeletal and connective tissue malignancy with mcc
543 Pathological fractures and musculoskeletal and connective tissue malignancy with cc
544 Pathological fractures and musculoskeletal and connective tissue malignancy without cc/mcc

Convert C49.A5 to ICD-9-CM

Code History

2017 (effective 10/1/2016): New code
2018 (effective 10/1/2017): No change

Diagnosis Index entries containing back-references to C49.A5:

Tumor - see also Neoplasm, unspecified behavior, by site
- stromal
  - gastrointestinal C49.A-
    ICD-10-CM Diagnosis Code C49.A-
    Gastrointestinal stromal tumor
    2017 - New Code 2018 Non-Billable/Non-Specific Code
    - malignant C49.A0
      ICD-10-CM Diagnosis Code C49.A0
      Gastrointestinal stromal tumor, unspecified site
      2017 - New Code 2018 Billable/Specific Code
      - rectum C49.A5
    - rectum C49.A5

ICD-10-CM Codes Adjacent To C49.A5

C49.5 Malignant neoplasm of connective and soft tissue of pelvis

C49.6 Malignant neoplasm of connective and soft tissue of trunk, unspecified

C49.8 Malignant neoplasm of overlapping sites of connective and soft tissue

C49.9 Malignant neoplasm of connective and soft tissue, unspecified

C49.A Gastrointestinal stromal tumor

C49.A0 …… unspecified site

C49.A1 …… of esophagus

C49.A2 …… of stomach

C49.A3 …… of small intestine

C49.A4 …… of large intestine

C49.A5 …… of rectum

C49.A9 …… of other sites

C50 Malignant neoplasm of breast

C50.0 Malignant neoplasm of nipple and areola

C50.01 Malignant neoplasm of nipple and areola, female

C50.011 Malignant neoplasm of nipple and areola, right female breast

C50.012 Malignant neoplasm of nipple and areola, left female breast

C50.019 Malignant neoplasm of nipple and areola, unspecified female breast

C50.02 Malignant neoplasm of nipple and areola, male

C50.021 Malignant neoplasm of nipple and areola, right male breast

C50.022 Malignant neoplasm of nipple and areola, left male breast

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

2018 ICD-10-CM Diagnosis Code C49.A5

Gastrointestinal stromal tumor of rectum

Neoplasms

Malignant neoplasm of other connective and soft tissue

Gastrointestinal stromal tumor

Gastrointestinal stromal tumor, unspecified site