DxCodebookFY2027 · Oct 1, 2026 – Sep 30, 2027

Category · FY2027

M90 Osteopathies in diseases classified elsewhere

  • Header · not billable

M90 is not billable. The category heads 72 billable codes in FY2027, grouped under 3 subdivisions.

Index → code

  • Osteopathyin (due to)specified diseases classified elsewhere → M90.8

Where it sits

  1. Chapter 13 Diseases of the musculoskeletal system and connective tissue (M00-M99)
  2. M86-M90 Other osteopathies (M86-M90)
  3. M90 Osteopathies in diseases classified elsewhere
Billable codes
72
Subdivisions
3
CC / MCC codes
24 / 0
HCC V28 codes
24
New FY2027
0
Index entries
114

Codes in M90

  1. M90.5
    Osteonecrosis in diseases classified elsewhere
    Header
    Code first 3

    Code first

    • underlying disease, such as:
    • caisson disease (T70.3) T70.3
    • hemoglobinopathy (D50-D64) D50 D64
  2. M90.50
    Osteonecrosis in diseases classified elsewhere, unspecified site
    BillableCC92
  3. M90.51
    Osteonecrosis in diseases classified elsewhere, shoulder
    Header
  4. M90.511
    Osteonecrosis in diseases classified elsewhere, right shoulder
    BillableCC92
  5. M90.512
    Osteonecrosis in diseases classified elsewhere, left shoulder
    BillableCC92
  6. M90.519
    Osteonecrosis in diseases classified elsewhere, unspecified shoulder
    BillableCC92
  7. M90.52
    Osteonecrosis in diseases classified elsewhere, upper arm
    Header
  8. M90.521
    Osteonecrosis in diseases classified elsewhere, right upper arm
    BillableCC92
  9. M90.522
    Osteonecrosis in diseases classified elsewhere, left upper arm
    BillableCC92
  10. M90.529
    Osteonecrosis in diseases classified elsewhere, unspecified upper arm
    BillableCC92
  11. M90.53
    Osteonecrosis in diseases classified elsewhere, forearm
    Header
  12. M90.531
    Osteonecrosis in diseases classified elsewhere, right forearm
    BillableCC92
  13. M90.532
    Osteonecrosis in diseases classified elsewhere, left forearm
    BillableCC92
  14. M90.539
    Osteonecrosis in diseases classified elsewhere, unspecified forearm
    BillableCC92
  15. M90.54
    Osteonecrosis in diseases classified elsewhere, hand
    Header
  16. M90.541
    Osteonecrosis in diseases classified elsewhere, right hand
    BillableCC92
  17. M90.542
    Osteonecrosis in diseases classified elsewhere, left hand
    BillableCC92
  18. M90.549
    Osteonecrosis in diseases classified elsewhere, unspecified hand
    BillableCC92
  19. M90.55
    Osteonecrosis in diseases classified elsewhere, thigh
    Header
  20. M90.551
    Osteonecrosis in diseases classified elsewhere, right thigh
    BillableCC92
  21. M90.552
    Osteonecrosis in diseases classified elsewhere, left thigh
    BillableCC92
  22. M90.559
    Osteonecrosis in diseases classified elsewhere, unspecified thigh
    BillableCC92
  23. M90.56
    Osteonecrosis in diseases classified elsewhere, lower leg
    Header
  24. M90.561
    Osteonecrosis in diseases classified elsewhere, right lower leg
    BillableCC92
  25. M90.562
    Osteonecrosis in diseases classified elsewhere, left lower leg
    BillableCC92
  26. M90.569
    Osteonecrosis in diseases classified elsewhere, unspecified lower leg
    BillableCC92
  27. M90.57
    Osteonecrosis in diseases classified elsewhere, ankle and foot
    Header
  28. M90.571
    Osteonecrosis in diseases classified elsewhere, right ankle and foot
    BillableCC92
  29. M90.572
    Osteonecrosis in diseases classified elsewhere, left ankle and foot
    BillableCC92
  30. M90.579
    Osteonecrosis in diseases classified elsewhere, unspecified ankle and foot
    BillableCC92
  31. M90.58
    Osteonecrosis in diseases classified elsewhere, other site
    BillableCC92
  32. M90.59
    Osteonecrosis in diseases classified elsewhere, multiple sites
    BillableCC92
  33. M90.6
    Osteitis deformans in neoplastic diseases
    Header
    Inclusion terms 1, Excludes1 1, Code first 1

    Inclusion terms

    • Osteitis deformans in malignant neoplasm of bone

    Excludes1

    • osteitis deformans [Paget's disease of bone] (M88.-) M88

    Code first

    • the neoplasm (C40.-, C41.-) C40 C41
  34. M90.60
    Osteitis deformans in neoplastic diseases, unspecified site
    Billable
  35. M90.61
    Osteitis deformans in neoplastic diseases, shoulder
    Header
  36. M90.611
    Osteitis deformans in neoplastic diseases, right shoulder
    Billable
  37. M90.612
    Osteitis deformans in neoplastic diseases, left shoulder
    Billable
  38. M90.619
    Osteitis deformans in neoplastic diseases, unspecified shoulder
    Billable
  39. M90.62
    Osteitis deformans in neoplastic diseases, upper arm
    Header
  40. M90.621
    Osteitis deformans in neoplastic diseases, right upper arm
    Billable
  41. M90.622
    Osteitis deformans in neoplastic diseases, left upper arm
    Billable
  42. M90.629
    Osteitis deformans in neoplastic diseases, unspecified upper arm
    Billable
  43. M90.63
    Osteitis deformans in neoplastic diseases, forearm
    Header
  44. M90.631
    Osteitis deformans in neoplastic diseases, right forearm
    Billable
  45. M90.632
    Osteitis deformans in neoplastic diseases, left forearm
    Billable
  46. M90.639
    Osteitis deformans in neoplastic diseases, unspecified forearm
    Billable
  47. M90.64
    Osteitis deformans in neoplastic diseases, hand
    Header
  48. M90.641
    Osteitis deformans in neoplastic diseases, right hand
    Billable
  49. M90.642
    Osteitis deformans in neoplastic diseases, left hand
    Billable
  50. M90.649
    Osteitis deformans in neoplastic diseases, unspecified hand
    Billable
  51. M90.65
    Osteitis deformans in neoplastic diseases, thigh
    Header
  52. M90.651
    Osteitis deformans in neoplastic diseases, right thigh
    Billable
  53. M90.652
    Osteitis deformans in neoplastic diseases, left thigh
    Billable
  54. M90.659
    Osteitis deformans in neoplastic diseases, unspecified thigh
    Billable
  55. M90.66
    Osteitis deformans in neoplastic diseases, lower leg
    Header
  56. M90.661
    Osteitis deformans in neoplastic diseases, right lower leg
    Billable
  57. M90.662
    Osteitis deformans in neoplastic diseases, left lower leg
    Billable
  58. M90.669
    Osteitis deformans in neoplastic diseases, unspecified lower leg
    Billable
  59. M90.67
    Osteitis deformans in neoplastic diseases, ankle and foot
    Header
  60. M90.671
    Osteitis deformans in neoplastic diseases, right ankle and foot
    Billable
  61. M90.672
    Osteitis deformans in neoplastic diseases, left ankle and foot
    Billable
  62. M90.679
    Osteitis deformans in neoplastic diseases, unspecified ankle and foot
    Billable
  63. M90.68
    Osteitis deformans in neoplastic diseases, other site
    Billable
  64. M90.69
    Osteitis deformans in neoplastic diseases, multiple sites
    Billable
  65. M90.8
    Osteopathy in diseases classified elsewhere
    Header
    Code first 3

    Code first

    • underlying disease, such as:
    • rickets (E55.0) E55.0
    • vitamin-D-resistant rickets (E83.31) E83.31
  66. M90.80
    Osteopathy in diseases classified elsewhere, unspecified site
    Billable
  67. M90.81
    Osteopathy in diseases classified elsewhere, shoulder
    Header
  68. M90.811
    Osteopathy in diseases classified elsewhere, right shoulder
    Billable
  69. M90.812
    Osteopathy in diseases classified elsewhere, left shoulder
    Billable
  70. M90.819
    Osteopathy in diseases classified elsewhere, unspecified shoulder
    Billable
  71. M90.82
    Osteopathy in diseases classified elsewhere, upper arm
    Header
  72. M90.821
    Osteopathy in diseases classified elsewhere, right upper arm
    Billable
  73. M90.822
    Osteopathy in diseases classified elsewhere, left upper arm
    Billable
  74. M90.829
    Osteopathy in diseases classified elsewhere, unspecified upper arm
    Billable
  75. M90.83
    Osteopathy in diseases classified elsewhere, forearm
    Header
  76. M90.831
    Osteopathy in diseases classified elsewhere, right forearm
    Billable
  77. M90.832
    Osteopathy in diseases classified elsewhere, left forearm
    Billable
  78. M90.839
    Osteopathy in diseases classified elsewhere, unspecified forearm
    Billable
  79. M90.84
    Osteopathy in diseases classified elsewhere, hand
    Header
  80. M90.841
    Osteopathy in diseases classified elsewhere, right hand
    Billable
  81. M90.842
    Osteopathy in diseases classified elsewhere, left hand
    Billable
  82. M90.849
    Osteopathy in diseases classified elsewhere, unspecified hand
    Billable
  83. M90.85
    Osteopathy in diseases classified elsewhere, thigh
    Header
  84. M90.851
    Osteopathy in diseases classified elsewhere, right thigh
    Billable
  85. M90.852
    Osteopathy in diseases classified elsewhere, left thigh
    Billable
  86. M90.859
    Osteopathy in diseases classified elsewhere, unspecified thigh
    Billable
  87. M90.86
    Osteopathy in diseases classified elsewhere, lower leg
    Header
  88. M90.861
    Osteopathy in diseases classified elsewhere, right lower leg
    Billable
  89. M90.862
    Osteopathy in diseases classified elsewhere, left lower leg
    Billable
  90. M90.869
    Osteopathy in diseases classified elsewhere, unspecified lower leg
    Billable
  91. M90.87
    Osteopathy in diseases classified elsewhere, ankle and foot
    Header
  92. M90.871
    Osteopathy in diseases classified elsewhere, right ankle and foot
    Billable
  93. M90.872
    Osteopathy in diseases classified elsewhere, left ankle and foot
    Billable
  94. M90.879
    Osteopathy in diseases classified elsewhere, unspecified ankle and foot
    Billable
  95. M90.88
    Osteopathy in diseases classified elsewhere, other site
    Billable
  96. M90.89
    Osteopathy in diseases classified elsewhere, multiple sites
    Billable

CC/MCC: as a secondary diagnosis, unless the principal diagnosis is on the code’s PDX exclusion list (MS-DRG v44 Appendix C; list on the code card).

Sources of each column.

Instructions

At M90

Excludes1

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

Notes that also apply

Block M86-M90 instructions (Excludes1 1): printed on the block page.

Chapter 13 instructions (Notes 1, Excludes2 10): printed on the chapter 13 page.

Index entries

  • Saber, sabre shin or tibia (syphilitic) → A50.56 [M90.86-]
  • Osteochondritissyphilitic (congenital) (early) → A50.02 [M90.80]
  • Syphilis, syphilitic (acquired)osteochondritis (congenital) (early) → A50.02 [M90.80]
  • Periostitis (albuminosa) (circumscribed) (diffuse) (infective) (monomelic)yaws (hypertrophic) (early) (late) → A66.6 [M90.80]
  • Mycetomabone (mycotic) → B47.9 [M90.80]
  • Scurvy, scorbuticrickets → E55.0 [M90.80]
  • Osteomalaciavitamin-D-resistant in adults → E83.31 [M90.8-]
  • Rickets (active) (acute) (adolescent) (chest wall) (congenital) (current) (infantile) (intestinal)vitamin-D-resistant → E83.31 [M90.80]
  • Cariessyphiliticcongenital (early) → A50.02 [M90.80]
  • Osteochondritissyphilitic (congenital) (early)ankle → A50.02 [M90.87-]
  • Osteochondritissyphilitic (congenital) (early)elbow → A50.02 [M90.82-]
  • Osteochondritissyphilitic (congenital) (early)foot → A50.02 [M90.87-]
  • Osteochondritissyphilitic (congenital) (early)forearm → A50.02 [M90.83-]
  • Osteochondritissyphilitic (congenital) (early)hand → A50.02 [M90.84-]
  • Osteochondritissyphilitic (congenital) (early)hip → A50.02 [M90.85-]
  • Osteochondritissyphilitic (congenital) (early)knee → A50.02 [M90.86-]
  • Osteochondritissyphilitic (congenital) (early)multiple sites → A50.02 [M90.89]
  • Osteochondritissyphilitic (congenital) (early)shoulder joint → A50.02 [M90.81-]
  • Osteochondritissyphilitic (congenital) (early)specified site NEC → A50.02 [M90.88]
  • Osteochondropathysyphilitic, congenitalearly → A50.02 [M90.80]
  • Osteomyelitis (general) (infective) (localized) (neonatal) (purulent) (septic) (staphylococcal) (streptococcal) (suppurative) (with periostitis)syphiliticcongenital (early) → A50.02 [M90.80]
  • Periostitis (albuminosa) (circumscribed) (diffuse) (infective) (monomelic)syphiliticcongenital (early) → A50.02 [M90.80]
  • Syphilis, syphilitic (acquired)periosteum (late)congenital (early) → A50.02 [M90.80]
  • Osteochondropathysyphilitic, congenitallate → A50.56 [M90.80]
  • Osteomalaciavitamin-D-resistant in adultscarpus → E83.31 [M90.84-]
  • Osteomalaciavitamin-D-resistant in adultsclavicle → E83.31 [M90.81-]
  • Osteomalaciavitamin-D-resistant in adultsfemur → E83.31 [M90.85-]
  • Osteomalaciavitamin-D-resistant in adultsfibula → E83.31 [M90.86-]
  • Osteomalaciavitamin-D-resistant in adultsfinger → E83.31 [M90.84-]
  • Osteomalaciavitamin-D-resistant in adultshumerus → E83.31 [M90.82-]
  • Osteomalaciavitamin-D-resistant in adultsilium → E83.31 [M90.88]
  • Osteomalaciavitamin-D-resistant in adultsischium → E83.31 [M90.88]
  • Osteomalaciavitamin-D-resistant in adultsmetacarpus → E83.31 [M90.84-]
  • Osteomalaciavitamin-D-resistant in adultsmetatarsus → E83.31 [M90.87-]
  • Osteomalaciavitamin-D-resistant in adultsmultiple sites → E83.31 [M90.89]
  • Osteomalaciavitamin-D-resistant in adultsneck → E83.31 [M90.88]
  • Osteomalaciavitamin-D-resistant in adultsradius → E83.31 [M90.83-]
  • Osteomalaciavitamin-D-resistant in adultsrib → E83.31 [M90.88]
  • Osteomalaciavitamin-D-resistant in adultsscapula → E83.31 [M90.819]
  • Osteomalaciavitamin-D-resistant in adultsskull → E83.31 [M90.88]

74 more, longer entries are not listed; the search box finds them by word.

NCHS Alphabetic Index. Index first, then the Tabular List.

Hierarchy