ICD-10-CM Codes
C00-D49 Neoplasms
C69-C72 Malignant neoplasms of eye, brain and other parts of central nervous system
C71- Malignant neoplasm of brain
2022 ICD-10-CM Diagnosis Code C71

2022 ICD-10-CM Diagnosis Code C71

Malignant neoplasm of brain

2016

2017

2018

2019

2020

2021

2022

Non-Billable/Non-Specific Code

C71 should not be used for reimbursement purposes as there are multiple codes below it that contain a greater level of detail.
The 2022 edition of ICD-10-CM C71 became effective on October 1, 2021.
This is the American ICD-10-CM version of C71 - other international versions of ICD-10 C71 may differ.

Type 1 Excludes

Type 1 Excludes Help

A type 1 excludes note is a pure excludes. It means "not coded here". A type 1 excludes note indicates that the code excluded should never be used at the same time as C71. A type 1 excludes note is for used for when two conditions cannot occur together, such as a congenital form versus an acquired form of the same condition.

malignant neoplasm of cranial nerves (
ICD-10-CM Diagnosis Code C72.2
Malignant neoplasm of olfactory nerve
Applicable To
- Malignant neoplasm of olfactory bulb
C72.2-
ICD-10-CM Diagnosis Code C72.5
Malignant neoplasm of other and unspecified cranial nerves
C72.5
)
retrobulbar malignant neoplasm (
ICD-10-CM Diagnosis Code C69.6
Malignant neoplasm of orbit
Applicable To
- Malignant neoplasm of connective tissue of orbit
- Malignant neoplasm of extraocular muscle
- Malignant neoplasm of peripheral nerves of orbit
- Malignant neoplasm of retrobulbar tissue
- Malignant neoplasm of retro-ocular tissue
Type 1 Excludes
- malignant neoplasm of orbital bone (C41.0)
C69.6-
)

The following code(s) above C71 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 C71:

C00-D49
2022 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

Clinical Information

A primary or metastatic malignant neoplasm affecting the brain.
Cancer of the brain is usually called a brain tumor. There are two main types. A primary brain tumor starts in the brain. A metastatic brain tumor starts somewhere else in the body and moves to the brain. Brain tumors can be benign, with no cancer cells, or malignant, with cancer cells that grow quickly.brain tumors can cause many symptoms. Some of the most common are
- headaches, usually worse in the morning
- nausea and vomiting
- changes in your ability to talk, hear, or see
- problems with balance or walking
- problems with thinking or memory
- muscle jerking or twitching
- numbness or tingling in arms or legs
doctors diagnose brain tumors by doing a neurologic exam and tests including an mri, ct scan, and biopsy. People with brain tumors have several treatment options. The options are surgery, radiation therapy, and chemotherapy. Many people get a combination of treatments. nih: national cancer institute

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

ICD-10-CM Codes Adjacent To C71

C69.81 Malignant neoplasm of overlapping sites of right eye and adnexa

C69.82 Malignant neoplasm of overlapping sites of left eye and adnexa

C69.9 Malignant neoplasm of unspecified site of eye

C69.90 Malignant neoplasm of unspecified site of unspecified eye

C69.91 Malignant neoplasm of unspecified site of right eye

C69.92 Malignant neoplasm of unspecified site of left eye

C70 Malignant neoplasm of meninges

C70.0 Malignant neoplasm of cerebral meninges

C70.1 Malignant neoplasm of spinal meninges

C70.9 Malignant neoplasm of meninges, unspecified

C71 Malignant neoplasm of brain

C71.0 Malignant neoplasm of cerebrum, except lobes and ventricles

C71.1 Malignant neoplasm of frontal lobe

C71.2 Malignant neoplasm of temporal lobe

C71.3 Malignant neoplasm of parietal lobe

C71.4 Malignant neoplasm of occipital lobe

C71.5 Malignant neoplasm of cerebral ventricle

C71.6 Malignant neoplasm of cerebellum

C71.7 Malignant neoplasm of brain stem

C71.8 Malignant neoplasm of overlapping sites of brain

C71.9 Malignant neoplasm of brain, unspecified

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

2022 ICD-10-CM Diagnosis Code C71

Malignant neoplasm of brain

Malignant neoplasm of olfactory nerve

Malignant neoplasm of other and unspecified cranial nerves

Malignant neoplasm of orbit

Neoplasms