M90 Osteopathies in diseases classified elsewhere

Category / Non-billable header 96 subcodes

Block: Other osteopathies (M86-M90)

Excludes 1 (cannot be coded together)

  • osteochondritis, osteomyelitis, and osteopathy (in):
  • cryptococcosis (B45.3)
  • diabetes mellitus (E08-E13 with .69-)
  • gonococcal (A54.43)
  • neurogenic syphilis (A52.11)
  • renal osteodystrophy (N25.0)
  • salmonellosis (A02.24)
  • secondary syphilis (A51.46)
  • syphilis (late) (A52.77)

Subcodes

Subcodes are listed below for reference. Detail pages are not available for chapters 11–22.

Code Description Billable
M90..5 Osteonecrosis in diseases classified elsewhere No
M90..50 Osteonecrosis in diseases classified elsewhere, unspecified site Yes
M90..51 Osteonecrosis in diseases classified elsewhere, shoulder No
M90..511 Osteonecrosis in diseases classified elsewhere, right shoulder Yes
M90..512 Osteonecrosis in diseases classified elsewhere, left shoulder Yes
M90..519 Osteonecrosis in diseases classified elsewhere, unspecified shoulder Yes
M90..52 Osteonecrosis in diseases classified elsewhere, upper arm No
M90..521 Osteonecrosis in diseases classified elsewhere, right upper arm Yes
M90..522 Osteonecrosis in diseases classified elsewhere, left upper arm Yes
M90..529 Osteonecrosis in diseases classified elsewhere, unspecified upper arm Yes
M90..53 Osteonecrosis in diseases classified elsewhere, forearm No
M90..531 Osteonecrosis in diseases classified elsewhere, right forearm Yes
M90..532 Osteonecrosis in diseases classified elsewhere, left forearm Yes
M90..539 Osteonecrosis in diseases classified elsewhere, unspecified forearm Yes
M90..54 Osteonecrosis in diseases classified elsewhere, hand No
M90..541 Osteonecrosis in diseases classified elsewhere, right hand Yes
M90..542 Osteonecrosis in diseases classified elsewhere, left hand Yes
M90..549 Osteonecrosis in diseases classified elsewhere, unspecified hand Yes
M90..55 Osteonecrosis in diseases classified elsewhere, thigh No
M90..551 Osteonecrosis in diseases classified elsewhere, right thigh Yes
M90..552 Osteonecrosis in diseases classified elsewhere, left thigh Yes
M90..559 Osteonecrosis in diseases classified elsewhere, unspecified thigh Yes
M90..56 Osteonecrosis in diseases classified elsewhere, lower leg No
M90..561 Osteonecrosis in diseases classified elsewhere, right lower leg Yes
M90..562 Osteonecrosis in diseases classified elsewhere, left lower leg Yes
M90..569 Osteonecrosis in diseases classified elsewhere, unspecified lower leg Yes
M90..57 Osteonecrosis in diseases classified elsewhere, ankle and foot No
M90..571 Osteonecrosis in diseases classified elsewhere, right ankle and foot Yes
M90..572 Osteonecrosis in diseases classified elsewhere, left ankle and foot Yes
M90..579 Osteonecrosis in diseases classified elsewhere, unspecified ankle and foot Yes
M90..58 Osteonecrosis in diseases classified elsewhere, other site Yes
M90..59 Osteonecrosis in diseases classified elsewhere, multiple sites Yes
M90..6 Osteitis deformans in neoplastic diseases No
M90..60 Osteitis deformans in neoplastic diseases, unspecified site Yes
M90..61 Osteitis deformans in neoplastic diseases, shoulder No
M90..611 Osteitis deformans in neoplastic diseases, right shoulder Yes
M90..612 Osteitis deformans in neoplastic diseases, left shoulder Yes
M90..619 Osteitis deformans in neoplastic diseases, unspecified shoulder Yes
M90..62 Osteitis deformans in neoplastic diseases, upper arm No
M90..621 Osteitis deformans in neoplastic diseases, right upper arm Yes
M90..622 Osteitis deformans in neoplastic diseases, left upper arm Yes
M90..629 Osteitis deformans in neoplastic diseases, unspecified upper arm Yes
M90..63 Osteitis deformans in neoplastic diseases, forearm No
M90..631 Osteitis deformans in neoplastic diseases, right forearm Yes
M90..632 Osteitis deformans in neoplastic diseases, left forearm Yes
M90..639 Osteitis deformans in neoplastic diseases, unspecified forearm Yes
M90..64 Osteitis deformans in neoplastic diseases, hand No
M90..641 Osteitis deformans in neoplastic diseases, right hand Yes
M90..642 Osteitis deformans in neoplastic diseases, left hand Yes
M90..649 Osteitis deformans in neoplastic diseases, unspecified hand Yes
M90..65 Osteitis deformans in neoplastic diseases, thigh No
M90..651 Osteitis deformans in neoplastic diseases, right thigh Yes
M90..652 Osteitis deformans in neoplastic diseases, left thigh Yes
M90..659 Osteitis deformans in neoplastic diseases, unspecified thigh Yes
M90..66 Osteitis deformans in neoplastic diseases, lower leg No
M90..661 Osteitis deformans in neoplastic diseases, right lower leg Yes
M90..662 Osteitis deformans in neoplastic diseases, left lower leg Yes
M90..669 Osteitis deformans in neoplastic diseases, unspecified lower leg Yes
M90..67 Osteitis deformans in neoplastic diseases, ankle and foot No
M90..671 Osteitis deformans in neoplastic diseases, right ankle and foot Yes
M90..672 Osteitis deformans in neoplastic diseases, left ankle and foot Yes
M90..679 Osteitis deformans in neoplastic diseases, unspecified ankle and foot Yes
M90..68 Osteitis deformans in neoplastic diseases, other site Yes
M90..69 Osteitis deformans in neoplastic diseases, multiple sites Yes
M90..8 Osteopathy in diseases classified elsewhere No
M90..80 Osteopathy in diseases classified elsewhere, unspecified site Yes
M90..81 Osteopathy in diseases classified elsewhere, shoulder No
M90..811 Osteopathy in diseases classified elsewhere, right shoulder Yes
M90..812 Osteopathy in diseases classified elsewhere, left shoulder Yes
M90..819 Osteopathy in diseases classified elsewhere, unspecified shoulder Yes
M90..82 Osteopathy in diseases classified elsewhere, upper arm No
M90..821 Osteopathy in diseases classified elsewhere, right upper arm Yes
M90..822 Osteopathy in diseases classified elsewhere, left upper arm Yes
M90..829 Osteopathy in diseases classified elsewhere, unspecified upper arm Yes
M90..83 Osteopathy in diseases classified elsewhere, forearm No
M90..831 Osteopathy in diseases classified elsewhere, right forearm Yes
M90..832 Osteopathy in diseases classified elsewhere, left forearm Yes
M90..839 Osteopathy in diseases classified elsewhere, unspecified forearm Yes
M90..84 Osteopathy in diseases classified elsewhere, hand No
M90..841 Osteopathy in diseases classified elsewhere, right hand Yes
M90..842 Osteopathy in diseases classified elsewhere, left hand Yes
M90..849 Osteopathy in diseases classified elsewhere, unspecified hand Yes
M90..85 Osteopathy in diseases classified elsewhere, thigh No
M90..851 Osteopathy in diseases classified elsewhere, right thigh Yes
M90..852 Osteopathy in diseases classified elsewhere, left thigh Yes
M90..859 Osteopathy in diseases classified elsewhere, unspecified thigh Yes
M90..86 Osteopathy in diseases classified elsewhere, lower leg No
M90..861 Osteopathy in diseases classified elsewhere, right lower leg Yes
M90..862 Osteopathy in diseases classified elsewhere, left lower leg Yes
M90..869 Osteopathy in diseases classified elsewhere, unspecified lower leg Yes
M90..87 Osteopathy in diseases classified elsewhere, ankle and foot No
M90..871 Osteopathy in diseases classified elsewhere, right ankle and foot Yes
M90..872 Osteopathy in diseases classified elsewhere, left ankle and foot Yes
M90..879 Osteopathy in diseases classified elsewhere, unspecified ankle and foot Yes
M90..88 Osteopathy in diseases classified elsewhere, other site Yes
M90..89 Osteopathy in diseases classified elsewhere, multiple sites Yes

Last reviewed: September 2026