2023

  1. ICD-10-CM Codes
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  2. C00-D49
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  3. C69-C72
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  4. C70-
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  5. 2023 ICD-10-CM Diagnosis Code C70.9

2023 ICD-10-CM Diagnosis Code C70.9

Malignant neoplasm of meninges, unspecified

    2016 2017 2018 2019 2020 2021 2022 2023 Billable/Specific Code
  • C70.9 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 C70.9 became effective on October 1, 2022.
  • This is the American ICD-10-CM version of C70.9 - other international versions of ICD-10 C70.9 may differ.
The following code(s) above C70.9 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 C70.9:
  • 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
Approximate Synonyms
  • Malignant meningitis
  • Meningeal carcinomatosis
Clinical Information
  • A primary or metastatic malignant tumor occurring in the meninges, which surround the brain and spinal cord. The most common are meningiomas.
ICD-10-CM C70.9 is grouped within Diagnostic Related Group(s) (MS-DRG v40.0):
  • 054 Nervous system neoplasms with mcc
  • 055 Nervous system neoplasms without mcc

Convert C70.9 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
ICD-10-CM Codes Adjacent To C70.9
C69.80 Malignant neoplasm of overlapping sites of unspecified eye and adnexa
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

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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