ICD-10-CM Codes
C00-D49 Neoplasms
C00-C14 Malignant neoplasms of lip, oral cavity and pharynx
C05- Malignant neoplasm of palate

2018/2019 ICD-10-CM Diagnosis Code C05.9

Malignant neoplasm of palate, unspecified

2016

2017

2018

2019

Billable/Specific Code

C05.9 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
The 2018/2019 edition of ICD-10-CM C05.9 became effective on October 1, 2018.
This is the American ICD-10-CM version of C05.9 - other international versions of ICD-10 C05.9 may differ.

Applicable To

Malignant neoplasm of roof of mouth

The following code(s) above C05.9 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 C05.9:

C00-D49
2019 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
C05
ICD-10-CM Diagnosis Code C05
Malignant neoplasm of palate
Type 1 Excludes
- Kaposi's sarcoma of palate (C46.2)
Use Additional
- code to identify:
- alcohol abuse and dependence (F10.-)
- history of tobacco dependence (Z87.891)
- tobacco dependence (F17.-)
- tobacco use (Z72.0)
Malignant neoplasm of palate

Approximate Synonyms

Cancer of the palate
Cancer of the palate, squamous cell
Primary malignant neoplasm of palate
Squamous cell carcinoma of palate

ICD-10-CM C05.9 is grouped within Diagnostic Related Group(s) (MS-DRG v36.0):

011 Tracheostomy for face,mouth & neck diagnoses or laryngectomy with mcc
012 Tracheostomy for face,mouth & neck diagnoses or laryngectomy with cc
013 Tracheostomy for face,mouth & neck diagnoses or laryngectomy without cc/mcc
146 Ear, nose, mouth and throat malignancy with mcc
147 Ear, nose, mouth and throat malignancy with cc
148 Ear, nose, mouth and throat malignancy without cc/mcc

Convert C05.9 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

ICD-10-CM Codes Adjacent To C05.9

C04 Malignant neoplasm of floor of mouth

C04.0 Malignant neoplasm of anterior floor of mouth

C04.1 Malignant neoplasm of lateral floor of mouth

C04.8 Malignant neoplasm of overlapping sites of floor of mouth

C04.9 Malignant neoplasm of floor of mouth, unspecified

C05 Malignant neoplasm of palate

C05.0 Malignant neoplasm of hard palate

C05.1 Malignant neoplasm of soft palate

C05.2 Malignant neoplasm of uvula

C05.8 Malignant neoplasm of overlapping sites of palate

C05.9 Malignant neoplasm of palate, unspecified

C06 Malignant neoplasm of other and unspecified parts of mouth

C06.0 Malignant neoplasm of cheek mucosa

C06.1 Malignant neoplasm of vestibule of mouth

C06.2 Malignant neoplasm of retromolar area

C06.8 Malignant neoplasm of overlapping sites of other and unspecified parts of mouth

C06.80 Malignant neoplasm of overlapping sites of unspecified parts of mouth

C06.89 Malignant neoplasm of overlapping sites of other parts of mouth

C06.9 Malignant neoplasm of mouth, unspecified

C07 Malignant neoplasm of parotid gland

C08 Malignant neoplasm of other and unspecified major salivary glands

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

2018/2019 ICD-10-CM Diagnosis Code C05.9

Malignant neoplasm of palate, unspecified

Neoplasms

Malignant neoplasm of palate