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ICD-10-CM Codes
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C00-D49
Neoplasms
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D10-D36
Benign neoplasms, except benign neuroendocrine tumors
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D33-
Benign neoplasm of brain and other parts of central nervous system
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2021 ICD-10-CM Diagnosis Code D33.1
2021 ICD-10-CM Diagnosis Code D33.1
Benign neoplasm of brain, infratentorial
2016 2017 2018 2019 2020 2021 Billable/Specific Code
- D33.1 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 D33.1 became effective on October 1, 2020.
- This is the American ICD-10-CM version of D33.1 - other international versions of ICD-10 D33.1 may differ.
Applicable To- Benign neoplasm of brain stem
- Benign neoplasm of cerebellum
- Benign neoplasm of fourth ventricle
The following code(s) above
D33.1 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
D33.1:
- Benign neoplasm nervous system, medulla
- Benign neoplasm of infratentorial brain
- Benign neoplasm of medulla oblongata
- Benign neoplasm, infratentorial brain
Clinical Information
- Non-malignant neoplasms that arise from cerebellar tissue. During childhood the most common form is pilocytic astrocytoma although fibrillary astrocytomas may also occur. These tumors may present with slowly progressive signs caused by a slowly expanding mass lesion or acutely due to hemorrhage of a vascular tumor. Clinical signs and symptoms may include ataxia, nystagmus, spasticity long tract signs, headache, nausea, vomiting, papilledema, diplopia, spasticity, and weakness, etc.)
ICD-10-CM D33.1 is grouped within Diagnostic Related Group(s) (MS-DRG v38.0):
- 054 Nervous system neoplasms with mcc
- 055 Nervous system neoplasms without mcc
Convert D33.1 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 D33.1:
- Papilloma - see also Neoplasm, benign, by site
- choroid plexus (lateral ventricle) (third ventricle) D33.0
ICD-10-CM Diagnosis Code D33.0
Benign neoplasm of brain, supratentorial
2016 2017 2018 2019 2020 2021 Billable/Specific Code
Applicable To- Benign neoplasm of cerebral ventricle
- Benign neoplasm of cerebrum
- Benign neoplasm of frontal lobe
- Benign neoplasm of occipital lobe
- Benign neoplasm of parietal lobe
- Benign neoplasm of temporal lobe
Type 1 Excludes- benign neoplasm of fourth ventricle (D33.1)
ICD-10-CM Codes Adjacent To D33.1
D31.9 Benign neoplasm of unspecified part of eye
D31.90 Benign neoplasm of unspecified part of unspecified eye
D31.91 Benign neoplasm of unspecified part of right eye
D31.92 Benign neoplasm of unspecified part of left eye
D32 Benign neoplasm of meninges
D32.0 Benign neoplasm of cerebral meninges
D32.1 Benign neoplasm of spinal meninges
D32.9 Benign neoplasm of meninges, unspecified
D33 Benign neoplasm of brain and other parts of central nervous system
D33.0 Benign neoplasm of brain, supratentorial
D33.1
Benign neoplasm of brain, infratentorial
D33.2 Benign neoplasm of brain, unspecified
D33.3 Benign neoplasm of cranial nerves
D33.4 Benign neoplasm of spinal cord
D33.7 Benign neoplasm of other specified parts of central nervous system
D33.9 Benign neoplasm of central nervous system, unspecified
D34 Benign neoplasm of thyroid gland
D35 Benign neoplasm of other and unspecified endocrine glands
D35.0 Benign neoplasm of adrenal gland
D35.00 Benign neoplasm of unspecified adrenal gland
D35.01 Benign neoplasm of right adrenal gland
Reimbursement claims with a date of service on or after October 1, 2015 require the use of ICD-10-CM codes.
