NHS South Birmingham is understood to be consulting over a list of proposed black-listed procedures, or procedures it wants GPs to get PCT permission for referring to secondary care.
Birmingham LMC executive secretary Dr Robert Morley said the list included non-malignant skin lesions, varicose veins, hysterectomies and grommet insertions.
'It's all about cuts and saving money,' he said.
GPC Wales chairman Dr David Bailey said there is a concern that local health boards (LHBs) across Wales are using the 'interventions not normally funded' definition too liberally.
He said some boards had extended the definition to exclude minor surgery services that GPs have been offering for many years.
GPC Wales has now protested to Paul Williams, chief executive officer of NHS Wales, that LHB blacklists are too far-reaching.
GPC Wales is telling Mr Williams that 'patient concern or distress and diagnostic uncertainty should both be reasons to ignore any lists of lesions that the LHB doesn't wish to treat'.
Morgannwg LMC medical secretary Dr Ian Millington said: 'It appears that the NHS wishes to disinvest in lumps and bumps minor surgery unless it meets very strict criteria.
'I think they don't want to do it at all.'
He said there was uncertainty about the rules around boards' stances over minor surgery.
'If you are authorised to do it, can you do it privately? Can you provide a private service to your own NHS patients?
'In parts of Wales, offering a private service means offering no service at all,' Dr Millington added.