M89.0Algoneurodystrophy

M89.0 is the ICD-10-CM diagnosis code for Algoneurodystrophy. It belongs to category M89 (other disorders of bone), block M86-M90 (other osteopathies) and chapter 13 (diseases of the musculoskeletal system and connective tissue). It is a header code, so it can't be reported by itself; one of its 10 subcodes must be used instead.

Within M89 (other disorders of bone), M89.0 is specifically for Algoneurodystrophy. Related codes cover physeal arrest (M89.1), development and growth (M89.2), hypertrophy of bone (M89.3), other hypertrophic osteoarthropathy (M89.4), osteolysis (M89.5), osteopathy after poliomyelitis (M89.6), major osseous defect (M89.7), other specified disorders of bone (M89.8) and 1 more.

To report this condition, pick the subcode that matches the documentation: M89.00 (unspecified site), M89.01 (shoulder), M89.02 (upper arm), M89.03 (forearm), M89.04 (hand), M89.05 (thigh), M89.06 (lower leg), M89.07 (ankle and foot) and 2 more.

Don't report M89.0 together with the conditions in its Excludes1 note: causalgia, lower limb (G57.7-), causalgia, upper limb (G56.4-), complex regional pain syndrome II, lower limb (G57.7-), complex regional pain syndrome II, upper limb (G56.4-) and 1 more.

It has been part of ICD-10-CM since the code set took effect on October 1, 2015 and hasn't changed since.