Is C77.1 a billable code?
Yes. C77.1 is a billable ICD-10-CM code and can be used on claims and superbills for dates of service from October 1, 2026 to September 30, 2027.
ICD-10-CM FY2027 diagnosis code
C77.1: Secondary and unspecified malignant neoplasm of intrathoracic lymph nodes
Billable codeValid for dates of service October 1, 2026 to September 30, 2027
C77.1 is a billable ICD-10-CM diagnosis code for secondary and unspecified malignant neoplasm of intrathoracic lymph nodes. It is specific enough to use on an insurance claim, a superbill or a Good Faith Estimate.
Superbill GeneratorStart a superbill with C77.1 already added.Good Faith EstimateStart a cost estimate with C77.1 already added.CMS-1500 Claim FormFill a claim form with C77.1 in box 21.
Other codes in C77 Secondary and unspecified malignant neoplasm of lymph nodes
- C77.0Secondary and unspecified malignant neoplasm of lymph nodes of head, face and neck
- C77.2Secondary and unspecified malignant neoplasm of intra-abdominal lymph nodes
- C77.3Secondary and unspecified malignant neoplasm of axilla and upper limb lymph nodes
- C77.4Secondary and unspecified malignant neoplasm of inguinal and lower limb lymph nodes
- C77.5Secondary and unspecified malignant neoplasm of intrapelvic lymph nodes
- C77.8Secondary and unspecified malignant neoplasm of lymph nodes of multiple regions
- C77.9Secondary and unspecified malignant neoplasm of lymph node, unspecified
C77.1 questions
What does C77.1 mean?
C77.1 is the ICD-10-CM code for Secondary and unspecified malignant neoplasm of intrathoracic lymph nodes. It is in chapter 2, Neoplasms (C00-D49).
Code titles come from the official ICD-10-CM files published by the CDC National Center for Health Statistics. Always check payer rules and the clinical record before billing.