C04.1 — Malignant neoplasm of lateral floor of mouth
Billable
Is C04.1 billable?
Yes — C04.1 is billable for FY2027. C04.1 is a valid, billable ICD-10-CM code at the highest level of specificity in its branch. C04.1 may be submitted for encounters from October 1, 2026 through September 30, 2027.
C04.1 at a glance
| Code | C04.1 |
|---|---|
| Description | Malignant neoplasm of lateral floor of mouth |
| Billable | Yes |
| Code set | ICD-10-CM FY2027 |
| Valid for encounters | October 1, 2026 – September 30, 2027 |
Which MS-DRGs does C04.1 group to?
C04.1 sits in MDC Pre and helps define the logic of 3 MS-DRGs (version 44, FY2027). Which one a stay actually groups to also depends on procedures and secondary diagnoses.
- 011Tracheostomy for Face, Mouth and Neck Diagnoses or Laryngectomy with MCCsurgical
- 012Tracheostomy for Face, Mouth and Neck Diagnoses or Laryngectomy with CCsurgical
- 013Tracheostomy for Face, Mouth and Neck Diagnoses or Laryngectomy without CC/MCCsurgical
Use additional code — inherited from C04
Report an additional code alongside C04.1 to fully describe the condition. C04.1 is sequenced first.
How long has C04.1 existed?
C04.1 has been in ICD-10-CM since at least FY2016, the earliest fiscal year on record here.
Derived from the official order files for FY2016–FY2026. FY2017 and FY2020 publish no order file, so those years are not covered.