The Body Part Occipital Bone is identified by number "7" and occupies the 4th position in the ICD10-PCS procedure code structure.
Below a selection of ICD 10 PCS codes related to 0NN7
Release Occipital Bone, Open Approach
Release Occipital Bone, Percutaneous Approach
Release Occipital Bone, Percutaneous Endoscopic Approach