DxCodebookFY2027 · Oct 1, 2026 – Sep 30, 2027

Category · FY2027

Z68 Body mass index [BMI]

  • Header · not billable

Z68 is not billable. The category heads 33 billable codes in FY2027, grouped under 5 subdivisions.

FY2027 changes under Z68: 2 billable codes added; Z68.1 no longer billable (now a header). All FY2027 changes.

Index → code

  • Body, bodiesmass index (BMI)adult18.5-19.9 → Z68.19
  • Body, bodiesmass index (BMI)adult20.0-20.9 → Z68.20
  • Body, bodiesmass index (BMI)adult21.0-21.9 → Z68.21

Where it sits

  1. Chapter 21 Factors influencing health status and contact with health services (Z00-Z99)
  2. Z68 Body mass index [BMI] (Z68)
  3. Z68 Body mass index [BMI]
Billable codes
33
Subdivisions
5
CC / MCC codes
9 / 0
HCC V28 codes
6
New FY2027
2
Index entries
33

Codes in Z68

  1. Z68.1
    Body mass index [BMI] 19.9 or less, adult Not billable since FY2027
    Header
  2. Z68.18
    Body mass index [BMI] 18.4 or less, adult New FY2027
    BillableCCExempt
  3. Z68.19
    Body mass index [BMI] 18.5-19.9, adult New FY2027
    BillableCCExempt
  4. Z68.2
    Body mass index [BMI] 20-29, adult
    Header
  5. Z68.20
    Body mass index [BMI] 20.0-20.9, adult
    BillableExempt
  6. Z68.21
    Body mass index [BMI] 21.0-21.9, adult
    BillableExempt
  7. Z68.22
    Body mass index [BMI] 22.0-22.9, adult
    BillableExempt
  8. Z68.23
    Body mass index [BMI] 23.0-23.9, adult
    BillableExempt
  9. Z68.24
    Body mass index [BMI] 24.0-24.9, adult
    BillableExempt
  10. Z68.25
    Body mass index [BMI] 25.0-25.9, adult
    BillableExempt
  11. Z68.26
    Body mass index [BMI] 26.0-26.9, adult
    BillableExempt
  12. Z68.27
    Body mass index [BMI] 27.0-27.9, adult
    BillableExempt
  13. Z68.28
    Body mass index [BMI] 28.0-28.9, adult
    BillableExempt
  14. Z68.29
    Body mass index [BMI] 29.0-29.9, adult
    BillableExempt
  15. Z68.3
    Body mass index [BMI] 30-39, adult
    Header
  16. Z68.30
    Body mass index [BMI] 30.0-30.9, adult
    BillableExempt
  17. Z68.31
    Body mass index [BMI] 31.0-31.9, adult
    BillableExempt
  18. Z68.32
    Body mass index [BMI] 32.0-32.9, adult
    BillableExempt
  19. Z68.33
    Body mass index [BMI] 33.0-33.9, adult
    BillableExempt
  20. Z68.34
    Body mass index [BMI] 34.0-34.9, adult
    BillableExempt
  21. Z68.35
    Body mass index [BMI] 35.0-35.9, adult
    BillableExempt
  22. Z68.36
    Body mass index [BMI] 36.0-36.9, adult
    BillableExempt
  23. Z68.37
    Body mass index [BMI] 37.0-37.9, adult
    BillableExempt
  24. Z68.38
    Body mass index [BMI] 38.0-38.9, adult
    BillableExempt
  25. Z68.39
    Body mass index [BMI] 39.0-39.9, adult
    BillableExempt
  26. Z68.4
    Body mass index [BMI] 40 or greater, adult
    Header
  27. Z68.41
    Body mass index [BMI] 40.0-44.9, adult
    BillableCC48Exempt
  28. Z68.42
    Body mass index [BMI] 45.0-49.9, adult
    BillableCC48Exempt
  29. Z68.43
    Body mass index [BMI] 50.0-59.9, adult
    BillableCC48Exempt
  30. Z68.44
    Body mass index [BMI] 60.0-69.9, adult
    BillableCC48Exempt
  31. Z68.45
    Body mass index [BMI] 70 or greater, adult
    BillableCC48Exempt
  32. Z68.5
    Body mass index [BMI] pediatric
    Header
  33. Z68.51
    Body mass index [BMI] pediatric, less than 5th percentile for age
    BillableExempt
  34. Z68.52
    Body mass index [BMI] pediatric, 5th percentile to less than 85th percentile for age
    BillableExempt
  35. Z68.53
    Body mass index [BMI] pediatric, 85th percentile to less than 95th percentile for age
    BillableExempt
  36. Z68.54
    Body mass index [BMI] pediatric, 95th percentile for age to less than 120% of the 95th percentile for age
    BillableExempt
  37. Z68.55
    Body mass index [BMI] pediatric, 120% of the 95th percentile for age to less than 140% of the 95th percentile for age
    BillableCCExempt
  38. Z68.56
    Body mass index [BMI] pediatric, greater than or equal to 140% of the 95th percentile for age
    BillableCC48Exempt

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 Z68

Notes

  • BMI adult codes are for use for persons 20 years of age or older
  • BMI pediatric codes are for use for persons 2-19 years of age.
  • These percentiles are based on the growth charts published by the Centers for Disease Control and Prevention (CDC)

Inclusion terms

  • Kilograms per meters squared

Notes that also apply

Chapter 21 instructions (Notes 3): printed on the chapter 21 page.

Index entries

  • Body, bodiesmass index (BMI)adult18.4 or less, adult → Z68.18
  • Body, bodiesmass index (BMI)adult18.5-19.9 → Z68.19
  • Body, bodiesmass index (BMI)adult20.0-20.9 → Z68.20
  • Body, bodiesmass index (BMI)adult21.0-21.9 → Z68.21
  • Body, bodiesmass index (BMI)adult22.0-22.9 → Z68.22
  • Body, bodiesmass index (BMI)adult23.0-23.9 → Z68.23
  • Body, bodiesmass index (BMI)adult24.0-24.9 → Z68.24
  • Body, bodiesmass index (BMI)adult25.0-25.9 → Z68.25
  • Body, bodiesmass index (BMI)adult26.0-26.9 → Z68.26
  • Body, bodiesmass index (BMI)adult27.0-27.9 → Z68.27
  • Body, bodiesmass index (BMI)adult28.0-28.9 → Z68.28
  • Body, bodiesmass index (BMI)adult29.0-29.9 → Z68.29
  • Body, bodiesmass index (BMI)adult30.0-30.9 → Z68.30
  • Body, bodiesmass index (BMI)adult31.0-31.9 → Z68.31
  • Body, bodiesmass index (BMI)adult32.0-32.9 → Z68.32
  • Body, bodiesmass index (BMI)adult33.0-33.9 → Z68.33
  • Body, bodiesmass index (BMI)adult34.0-34.9 → Z68.34
  • Body, bodiesmass index (BMI)adult35.0-35.9 → Z68.35
  • Body, bodiesmass index (BMI)adult36.0-36.9 → Z68.36
  • Body, bodiesmass index (BMI)adult37.0-37.9 → Z68.37
  • Body, bodiesmass index (BMI)adult38.0-38.9 → Z68.38
  • Body, bodiesmass index (BMI)adult39.0-39.9 → Z68.39
  • Body, bodiesmass index (BMI)adult40.0-44.9 → Z68.41
  • Body, bodiesmass index (BMI)adult45.0-49.9 → Z68.42
  • Body, bodiesmass index (BMI)adult50.0-59.9 → Z68.43
  • Body, bodiesmass index (BMI)adult60.0-69.9 → Z68.44
  • Body, bodiesmass index (BMI)adult70 and over → Z68.45
  • Body, bodiesmass index (BMI)pediatricless than fifth percentile for age → Z68.51
  • Body, bodiesmass index (BMI)pediatric5th percentile to less than 85th percentile for age → Z68.52
  • Body, bodiesmass index (BMI)pediatric85th percentile to less than 95th percentile for age → Z68.53
  • Body, bodiesmass index (BMI)pediatric95th percentile for age to less than 120% of the 95th percentile for age → Z68.54
  • Body, bodiesmass index (BMI)pediatric120% of the 95th percentile for age to less than 140% of the 95th percentile for age → Z68.55
  • Body, bodiesmass index (BMI)pediatricgreater than or equal to 140% of the 95th percentile for age → Z68.56

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