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ICD-10-CM 2027 diagnosis code

C30.0Malignant neoplasm of nasal cavity

✓ Billable / specific

C30.0 is a valid, billable ICD-10-CM code for malignant neoplasm of nasal cavity. It can be reported on claims for dates of service from October 1, 2026 – September 30, 2027.

Looking up by condition? See ICD-10 code for Esthesioneurocytoma, ICD-10 code for Esthesioneuroblastoma, ICD-10 code for Esthesioneuroepithelioma.

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 C30.0

C30.0 is the ICD-10-CM diagnosis code for malignant neoplasm of nasal cavity. It belongs to category C30 (malignant neoplasm of nasal cavity and middle ear), block C30-C39 (malignant neoplasms of respiratory and intrathoracic organs) 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 C30 (malignant neoplasm of nasal cavity and middle ear), C30.0 is specifically for malignant neoplasm of nasal cavity. Related codes cover middle ear (C30.1).

Don't report C30.0 together with the conditions in its Excludes1 note: malignant neoplasm of nasal bone (C41.0), malignant neoplasm of nose NOS (C76.0), malignant neoplasm of olfactory bulb (C72.2-), malignant neoplasm of posterior margin of nasal septum and choana (C11.3) and 3 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 160.0 (malignant neoplasm of nasal cavities).

Coding notes

Applicable toConditions and synonyms classified to this code
  • Malignant neoplasm of cartilage of nose
  • Malignant neoplasm of nasal concha
  • Malignant neoplasm of internal nose
  • Malignant neoplasm of septum of nose
  • Malignant neoplasm of vestibule of nose
Excludes1Not coded here — never report together with this code
  • malignant neoplasm of nasal bone (C41.0)
  • malignant neoplasm of nose NOS (C76.0)
  • malignant neoplasm of olfactory bulb (C72.2-)
  • malignant neoplasm of posterior margin of nasal septum and choana (C11.3)
  • malignant melanoma of skin of nose (C43.31)
  • malignant neoplasm of turbinates (C41.0)
  • other and unspecified malignant neoplasm of skin of nose (C44.301, C44.311, C44.321, C44.391)

Notes that apply from higher levels

Instructions written at a parent level also apply to C30.0.

Broader instructions also apply from C30-C39 Malignant neoplasms of respiratory and intrathoracic organs and Chapter 2: Neoplasms.

Alphabetic index entries

8 entries

Terms in the official ICD-10-CM index that lead to C30.0.

Table of Drugs & Neoplasms entries

Codes whose notes reference C30.0

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.

ICD-9-CM equivalent

Converter →
  • 160.0Malignant neoplasm of nasal cavitiesexact

From the CMS 2018 General Equivalence Mappings (GEMs), the final GEMs release.

Code history

  1. 2016
  2. 2017
  3. 2018
  4. 2019
  5. 2020
  6. 2021
  7. 2022
  8. 2023
  9. 2024
  10. 2025
  11. 2026
  12. 2027
  • FY2016 (effective 10/1/2015): Added (first year of ICD-10-CM)
  • No changes since FY2016.

Common questions about C30.0

Is C30.0 billable?

Yes. C30.0 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).

Can C30.0 be used as a principal diagnosis?

Yes. The Medicare Code Editor doesn't restrict C30.0 as a principal diagnosis.

Is C30.0 a CC or MCC?

No. C30.0 is neither a CC nor an MCC under MS-DRG v44.0.

What DRG does C30.0 group to?

C30.0 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 C30.0?

The CMS General Equivalence Mappings map C30.0 to ICD-9-CM 160.0.