C73 — Malignant neoplasm of thyroid gland
Is C73 billable?
Yes — C73 is billable for FY2027. C73 is a valid, billable ICD-10-CM code at the highest level of specificity in its branch. C73 may be submitted for encounters from October 1, 2026 through September 30, 2027.
C73 at a glance
| Code | C73 |
|---|---|
| Description | Malignant neoplasm of thyroid gland |
| Billable | Yes |
| Code set | ICD-10-CM FY2027 |
| Valid for encounters | October 1, 2026 – September 30, 2027 |
Which MS-DRGs does C73 group to?
C73 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 C73 listed in the Alphabetic Index?
These are the routes through the Alphabetic Index that lead to C73. They show the wording a clinician may have documented, which often differs from the Tabular description.
- Wuchernde Struma Langhans
- Adenocarcinoma › Hurthle cell
- Adenocarcinoma › nonencapsulated sclerosing
- Carcinoma › Hurthle cell (malignant)
- Carcinoma › nonencapsulated sclerosing (malignant)
- Goiter › cancerous (plunging) (substernal)
- Goiter › malignant (plunging) (substernal)
- Hurthle cell › adenocarcinoma
- Hurthle cell › carcinoma
- Tumor › nonencapsulated sclerosing
- Adenocarcinoma › follicular › with papillary
- Adenocarcinoma › follicular › moderately differentiated
Use additional code
Report an additional code alongside C73 to fully describe the condition. C73 is sequenced first.
- code to identify any functional activity
How long has C73 existed?
C73 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.
Which codes are confused with C73?
ICD-10-CM declares these codes mutually exclusive with C73 — exactly one of each pair can be correct for a given encounter.