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Z68.39 ICD-10-CM Code: Body mass index [BMI] 39.0-39.9, adult

Billing Status: YES. This is a valid, specific, and billable ICD-10-CM reference.

Inpatient Payment Groups (MS-DRG)

MS-DRGs this diagnosis helps define, as principal or secondary, per the CMS ICD-10-CM/PCS MS-DRG Definitions Manual v43.0, Appendix B.

  • MS-DRG 951 — OTHER FACTORS INFLUENCING HEALTH STATUS (MDC 23)

A diagnosis appearing in a group's logic does not by itself determine the DRG assigned to a stay; the grouper uses the full claim.

Official Registry Overview & Definition

Body mass index [BMI] 39.0-39.9, adult is a billable ICD-10-CM diagnosis code (Z68.39).

Change history

  • FY2021 — 2020-10-01
    Description revised
    Body mass index (BMI) 39.0-39.9, adult → Body mass index [BMI] 39.0-39.9, adult
    FY2021 changes
  • FY2021 — 2020-10-01
    Short description revised
    Body mass index (BMI) 39.0-39.9, adult → Body mass index [BMI] 39.0-39.9, adult
    FY2021 changes

Verify Before Coding

  • Principal-diagnosis restriction. The Medicare Code Editor lists this code as unacceptable as a principal diagnosis: it describes a circumstance influencing health status rather than a current illness or injury being treated. It is valid as a secondary diagnosis.
  • Age-restricted: the Medicare Code Editor lists this as a adult (age 15-124) diagnosis; other ages are presumed incorrect.

From the code registry, the Medicare Code Editor, and the MS-DRG Definitions Manual. Check it against a full claim.

Contextual Map

Every relationship of Z68.39 in one view: hierarchy, official tabular instructions in both directions, clinical classification, risk adjustment, MS-DRG participation, index terms and change history — each edge carrying the CMS source it derives from.

Hierarchy

  • Z00-Z99 — Chapter 21: Factors Influencing Health Status and Contact with Health Services (Z00-Z99) (Z00-Z99) [Hierarchy]
  • Z68-Z68 — Body mass index [BMI] [Hierarchy]

Referenced by Use Additional Code instructions

  • E88.82 — Obesity due to disruption of MC4R pathway [Use Additional Code](via Z68.-): “code to identify body mass index (BMI), if known (Z68.-)” · check together
  • R63.6 — Underweight [Use Additional Code](via Z68.-): “code to identify body mass index (BMI), if known (Z68.-)” · check together
  • Z15.2 — Genetic susceptibility to obesity [Use Additional Code](via Z68.-): “code to identify body mass index (BMI), if known (Z68.-)” · check together
  • Z71.3 — Dietary counseling and surveillance [Use Additional Code](via Z68.-): “code to identify body mass index (BMI), if known (Z68.-)” · check together

Clinical classification (CCSR)

Potential MS-DRG

  • DRG 951 — OTHER FACTORS INFLUENCING HEALTH STATUS [MS-DRG]: “OTHER FACTORS INFLUENCING HEALTH STATUS (MDC 23)”

MDC crossing · procedures (1235)

  • MDC 23 — Factors Influencing Health Status and Other Contacts with Health Services [MDC crossing]: “Factors Influencing Health Status and Other Contacts with Health Services — the grouper's crossing between diagnoses and procedures: a principal diagnosis sets the MDC, and same-MDC procedures move the stay to its surgical DRGs.”
  • F003GKZ — Communicative/Cognitive Integration Skills Assessment of Neurological System - Whole Body using Audiovisual Equipment [Same-MDC procedure]: “Communicative/Cognitive Integration Skills Assessment of Neurological System - Whole Body using Audiovisual Equipment — grouped in MDC 23, the procedure side of this code's crossing.” · check together
  • F003GMZ — Communicative/Cognitive Integration Skills Assessment of Neurological System - Whole Body using Augmentative / Alternative Communication Equipment [Same-MDC procedure]: “Communicative/Cognitive Integration Skills Assessment of Neurological System - Whole Body using Augmentative / Alternative Communication Equipment — grouped in MDC 23, the procedure side of this code's crossing.” · check together
  • F003GPZ — Communicative/Cognitive Integration Skills Assessment of Neurological System - Whole Body using Computer [Same-MDC procedure]: “Communicative/Cognitive Integration Skills Assessment of Neurological System - Whole Body using Computer — grouped in MDC 23, the procedure side of this code's crossing.” · check together
  • F003GYZ — Communicative/Cognitive Integration Skills Assessment of Neurological System - Whole Body using Other Equipment [Same-MDC procedure]: “Communicative/Cognitive Integration Skills Assessment of Neurological System - Whole Body using Other Equipment — grouped in MDC 23, the procedure side of this code's crossing.” · check together
  • F003GZZ — Communicative/Cognitive Integration Skills Assessment of Neurological System - Whole Body [Same-MDC procedure]: “Communicative/Cognitive Integration Skills Assessment of Neurological System - Whole Body — grouped in MDC 23, the procedure side of this code's crossing.” · check together
  • and 1230 more

Index entries

  • Body, bodies, mass index (BMI), adult, 39.0-39.9[Index term]

Nearest codes (38)

  • Z68 — Body mass index [BMI] [Sibling]
  • Z68.1 — Body mass index [BMI] 19.9 or less, adult [Sibling]
  • Z68.18 — Body mass index [BMI] 18.4 or less, adult [Sibling]
  • Z68.19 — Body mass index [BMI] 18.5-19.9, adult [Sibling]
  • Z68.2 — Body mass index [BMI] 20-29, adult [Sibling]
  • Z68.20 — Body mass index [BMI] 20.0-20.9, adult [Sibling]
  • Z68.21 — Body mass index [BMI] 21.0-21.9, adult [Sibling]
  • Z68.22 — Body mass index [BMI] 22.0-22.9, adult [Sibling]
  • and 30 more

Change history (2)

  • FY2021 — Description revised [Change history]
  • and 1 more

Referenced by Other Codes

Clinical classification (AHRQ CCSR):END009 — Obesity.

Clinical Classifications Software Refined (CCSR) for ICD-10-CM Diagnoses. Healthcare Cost and Utilization Project (HCUP), Agency for Healthcare Research and Quality.

Potential MS-DRG Relationships (FY2026)

Not on the CMS CC/MCC list — as a secondary diagnosis this code does not change MS-DRG severity.

Named in the grouper logic of 1 MS-DRG: DRG 951 (MDC 23).

From the CMS MS-DRG Definitions Manual (Appendices B and C). Actual DRG assignment depends on the complete claim.

Official ICD-10-CM tabular notes on other codes that name Z68.39 or its code family.

4 Use Additional Code instructions across 3 chapters: E88.82 (via Z68.-), R63.6 (via Z68.-), Z15.2 (via Z68.-), Z71.3 (via Z68.-).

Nearest Codes in This Family

Official ICD-10-CM classifications closest to Z68.39 in its code family, with their registry titles.

  • Z68.34 — Body mass index [BMI] 34.0-34.9, adult
  • Z68.35 — Body mass index [BMI] 35.0-35.9, adult
  • Z68.36 — Body mass index [BMI] 36.0-36.9, adult
  • Z68.37 — Body mass index [BMI] 37.0-37.9, adult
  • Z68.38 — Body mass index [BMI] 38.0-38.9, adult
  • Z68.4 — Body mass index [BMI] 40 or greater, adult
  • Z68.41 — Body mass index [BMI] 40.0-44.9, adult
  • Z68.42 — Body mass index [BMI] 45.0-49.9, adult
  • Z68.43 — Body mass index [BMI] 50.0-59.9, adult
  • Z68.44 — Body mass index [BMI] 60.0-69.9, adult

View all codes in the Z68 family

Indexed Clinical Terms (1)

Clinical term phrases from the official ICD-10-CM Index to Diseases and Injuries that map to this code.

  • Body, bodies, mass index (BMI), adult, 39.0-39.9