ICDcodes.org
FY2027

C10.4 — Malignant neoplasm of branchial cleft

Billable

Is C10.4 billable?

Yes — C10.4 is billable for FY2027. C10.4 is a valid, billable ICD-10-CM code at the highest level of specificity in its branch. C10.4 may be submitted for encounters from October 1, 2026 through September 30, 2027.

C10.4 at a glance

CodeC10.4
DescriptionMalignant neoplasm of branchial cleft
BillableYes
Code setICD-10-CM FY2027
Valid for encountersOctober 1, 2026 – September 30, 2027

Which MS-DRGs does C10.4 group to?

C10.4 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

How is C10.4 listed in the Alphabetic Index?

These are the routes through the Alphabetic Index that lead to C10.4. They show the wording a clinician may have documented, which often differs from the Tabular description.

  • Carcinoma › branchial or branchiogenic (malignant)

Inclusion terms

Alternative wording in documentation that is classified to C10.4.

  • Malignant neoplasm of branchial cyst [site of neoplasm]

Use additional code — inherited from C10

Report an additional code alongside C10.4 to fully describe the condition. C10.4 is sequenced first.

  • 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)

Excludes2 — not included here — inherited from C10

The conditions below are not part of C10.4, but a patient may have both at the same time. When documentation supports it, C10.4 and the excluded code may both be reported.

  • malignant neoplasm of tonsil (C09.-)

How long has C10.4 existed?

C10.4 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.

What other codes are in the C10 family? (6)