You have to code the 29880. Think about it this way - would they have gone in there just to do the 29877 in the first place? Probably not. The reason for the surgery and intent of the procedure was the meniscectomy. Agree as above that the CPT description itself is the answer.
However, regarding the G0289, you have to be very careful trying to report that at the same time as a meniscectomy. It would have to be performed in a
separate compartment which is highly unlikely. This is especially true with 29880. It would be more likely to see it with 29881. The documentation would have to be bulletproof. If they were doing 29880 medial/lateral you would have to be able to prove in the documentation that they were in the PF.
NCCI:
6. CPT codes 29874 (Arthroscopy, knee, surgical; for removal of loose body or foreign body (e.g., osteochondritis dissecans fragmentation, chondral fragmentation) and 29877 (Arthroscopy, knee, surgical; for debridement/shaving of articular cartilage (chondroplasty)) shall not be reported with other knee arthroscopy codes (29866-29889). With 2 exceptions, HCPCS code G0289 (Arthroscopy, knee, surgical; for removal of loose body, foreign body, debridement/shaving of articular cartilage at the time of other surgical knee arthroscopy
in a different compartment of the same knee) may be reported with other knee arthroscopy codes. Since CPT codes 29880 (Arthroscopy, knee, surgical; with meniscectomy (medial AND lateral, including any meniscal shaving) including debridement/shaving of articular cartilage (chondroplasty) same or separate compartment(s), when performed) and 29881 (Arthroscopy, knee, surgical; with meniscectomy (medial OR lateral, including any meniscal shaving) including debridement/shaving of articular cartilage (chondroplasty) same or separate compartment(s), when performed) include debridement/shaving of articular cartilage of any compartment, HCPCS code G0289 may be reported with CPT codes 29880 or 29881
only if reported for removal of a loose body or foreign body
from a different compartment of the same knee. HCPCS code G0289 shall not be reported for removal of a loose body or foreign body or debridement/shaving of articular cartilage from the same compartment as another knee arthroscopic procedure.