ICD-10-CM 2027 diagnosis code
C08.0Malignant neoplasm of submandibular gland
C08.0 is a valid, billable ICD-10-CM code for malignant neoplasm of submandibular gland. It can be reported on claims for dates of service from October 1, 2026 – September 30, 2027.
Code unchanged since ICD-10-CM took effect on October 1, 2015. Source: official FY2027 ICD-10-CM release from CDC/NCHS and CMS. Page updated September 29, 2026. About our data
About C08.0
C08.0 is the ICD-10-CM diagnosis code for malignant neoplasm of submandibular gland. It belongs to category C08 (malignant neoplasm of other and unspecified major salivary glands), block C00-C14 (malignant neoplasms of lip, oral cavity and pharynx) and chapter 2 (neoplasms). It is billable, so it can be reported on its own for dates of service from October 1, 2026 through September 30, 2027.
Within C08 (malignant neoplasm of other and unspecified major salivary glands), C08.0 is specifically for malignant neoplasm of submandibular gland. Related codes cover sublingual gland (C08.1) and major salivary gland, unspecified (C08.9).
Use an additional code to identify: alcohol abuse and dependence (F10.-), exposure to environmental tobacco smoke (Z77.22), exposure to tobacco smoke in the perinatal period (P96.81), history of tobacco dependence (Z87.891), occupational exposure to environmental tobacco smoke (Z57.31) and 2 more.
It is not a CC or MCC, so as a secondary diagnosis it doesn't change the MS-DRG severity level.
In MS-DRG v44.0, it is part of the grouping logic for DRG 011 (Tracheostomy for Face, Mouth and Neck Diagnoses or Laryngectomy with MCC, relative weight 5.6154), DRG 012 (Tracheostomy for Face, Mouth and Neck Diagnoses or Laryngectomy with CC, relative weight 4.381), DRG 013 (Tracheostomy for Face, Mouth and Neck Diagnoses or Laryngectomy without CC/MCC, relative weight 2.7307), DRG 146 (Ear, Nose, Mouth and Throat Malignancy with MCC, relative weight 2.1329), DRG 147 (Ear, Nose, Mouth and Throat Malignancy with CC, relative weight 1.3055) and DRG 148 (Ear, Nose, Mouth and Throat Malignancy without CC/MCC, relative weight 0.8008), in Pre-MDC and MDC 03 (Diseases and Disorders of the Ear, Nose, Mouth and Throat), as a principal or secondary diagnosis. The DRG a claim lands in depends on the principal diagnosis, procedures and any CC/MCC secondary diagnoses.
It has been part of ICD-10-CM since the code set took effect on October 1, 2015 and hasn't changed since.
Before ICD-10, this condition was coded in ICD-9-CM as 142.1 (malignant neoplasm of submandibular gland).
Coding notes
- Malignant neoplasm of submaxillary gland
Notes that apply from higher levels
Instructions written at a parent level also apply to C08.0.
› From C08 Malignant neoplasm of other and unspecified major salivary glands
- malignant neoplasm of salivary ducts
- malignant neoplasms of specified minor salivary glands which are classified according to their anatomical location
- code to identify:
- alcohol abuse and dependence (F10.-)
- exposure to environmental tobacco smoke (Z77.22)
- exposure to tobacco smoke in the perinatal period (P96.81)
- history of tobacco dependence (Z87.891)
- occupational exposure to environmental tobacco smoke (Z57.31)
- tobacco dependence (F17.-)
- tobacco use (Z72.0)
Broader instructions also apply from Chapter 2: Neoplasms.
Table of Drugs & Neoplasms entries
- Neoplasm, neoplastic › salivary gland or duct (major) › submandibular — Malignant Primary
- Neoplasm, neoplastic › salivary gland or duct (major) › submaxillary — Malignant Primary
- Neoplasm, neoplastic › submandibular gland — Malignant Primary
- Neoplasm, neoplastic › submaxillary gland or duct — Malignant Primary
- Neoplasm, neoplastic › Wharton's duct — Malignant Primary
MS-DRG v44.0 grouping
All DRGs →Inpatient MS-DRGs this diagnosis can group to, as the principal or a secondary diagnosis, depending on the rest of the claim.
MDC PRE · Pre-MDC
MDC 03 · Diseases and Disorders of the Ear, Nose, Mouth and Throat
ICD-9-CM equivalent
Converter →- 142.1Malignant neoplasm of submandibular glandexact
From the CMS 2018 General Equivalence Mappings (GEMs), the final GEMs release.
Code history
- 2016
- 2017
- 2018
- 2019
- 2020
- 2021
- 2022
- 2023
- 2024
- 2025
- 2026
- 2027
- FY2016 (effective 10/1/2015): Added (first year of ICD-10-CM)
- No changes since FY2016.
Common questions about C08.0
Is C08.0 billable?
- Yes. C08.0 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).
Can C08.0 be used as a principal diagnosis?
- Yes. The Medicare Code Editor doesn't restrict C08.0 as a principal diagnosis.
Is C08.0 a CC or MCC?
- No. C08.0 is neither a CC nor an MCC under MS-DRG v44.0.
What DRG does C08.0 group to?
- C08.0 is used in the MS-DRG v44.0 logic for MS-DRG 011 (Tracheostomy for Face, Mouth and Neck Diagnoses or Laryngectomy with MCC), MS-DRG 012 (Tracheostomy for Face, Mouth and Neck Diagnoses or Laryngectomy with CC), MS-DRG 013 (Tracheostomy for Face, Mouth and Neck Diagnoses or Laryngectomy without CC/MCC), MS-DRG 146 (Ear, Nose, Mouth and Throat Malignancy with MCC), MS-DRG 147 (Ear, Nose, Mouth and Throat Malignancy with CC) and MS-DRG 148 (Ear, Nose, Mouth and Throat Malignancy without CC/MCC). Which one applies depends on whether it is the principal diagnosis and on the rest of the claim.
What is the ICD-9 code for C08.0?
- The CMS General Equivalence Mappings map C08.0 to ICD-9-CM 142.1.