For the shoulder, infection was suspected, but there wasn't any evidence of infection. Index joint -> exploration -> acromioclavicular for 23044.
For the knees, purulence was noted for both. This is incision and drainage. Index abscess -> tissue (no mention of bone) -> knee for 27301.
No bundles- code both.
23044-LT linked to M25.512
27301-50 linked to M00.9