Z73.1 ICD-10-CM Code: Type A behavior pattern

Coding instructions

Official Tabular Instructional Notes: the inclusion, exclusion and sequencing notes published for Z73.1 in the official ICD-10-CM tabular list, quoted as published.

Source: CMS/CDC — ICD-10-CM Tabular ListRelease: FY2026Effective: October 1, 2025

Notes without a marker are published on Z73.1 itself; “inherited from” names the category or block whose note applies here.

Coder workflow for Z73.1

MedCoder structured workflow — derived from this code’s own official record

Before you code Z73.1

1. Confirm the reason for the encounter this Z code records: the circumstance it records. Check whether the code may be reported as first-listed or principal — some Z codes are limited to one position — and do not report a history or status code for a condition documented as current. Z code categories and their reporting positions (Guidelines I.C.21.c, I.C.21.c.15).

   Guide: Z codes as principal or first-listed diagnosis →

Documentation check

The provider’s diagnostic statement

Codes are assigned from the provider’s documented diagnosis, not from clinical criteria, test values or a medication list (Guidelines I.A.19).

The reason for the encounter

Whether the code records the encounter’s purpose, a status, or a history — and whether it may be first-listed (Guidelines I.C.21.c).

Official instructions as workflow

• Excludes2 — not part of Z73.1(1 note)

  Coding workflow: The conditions named in this note are not included in Z73.1. When the record documents both, both may be reported; the note is a boundary, not a prohibition.

  See the official tabular notes · Guidelines I.A.12.b

Every row is derived from this code’s own record — its title, tabular notes, 7th-character family and same-category siblings — with fixed MedCoder wording; nothing is inferred about a patient. The official notes and guideline text are in the sections each row links to, and they control.

Indexed Clinical Terms (7)

Official source data — entries quoted as published, in the Index’s own lookup phrasing

Clinical term phrases from the official ICD-10-CM Index to Diseases and Injuries that map to this code. These are alphabetic-index entries shown as the Index writes them — lookup phrasing, not necessarily the wording of a final diagnosis.

• Accentuation of personality traits (type A)
• Behavior, type A pattern
• Personality (disorder), accentuation of traits (type A pattern)
• Personality (disorder), type A
• Trait (s), personality, accentuated
• Trait (s), type A personality
• Type A behavior pattern

Official Coding Guidelines

Official source data — quoted verbatim from the CMS/NCHS Official Guidelines

Official source data — quoted verbatim from the CMS/NCHS Official Guidelines

Verbatim excerpts from the ICD-10-CM Official Guidelines for Coding and Reporting (CMS/NCHS) that govern this code.

Don’t confuse Z73.1 with…

MedCoder analysis — pairs from this code’s official notes, distinctions written by MedCoder

The codes most likely to be picked instead of Z73.1 — named in its own official notes, or sharing its laterality or encounter family — with what separates them and which documentation moves the case. Each links to the full comparison.

• Z73.9— Specificity relationship (Review)

  Overlapping diagnoses in the same category.

  Overlapping codes in the same category — the documentation decides which is the more specific fit.

  What moves you there: A record that documents no more than “Problem related to life management difficulty, unspecified” takes Z73.9; specificity in the record moves it back here.

  Full comparison: Z73.1 vs Z73.9 →

• Z55— Excludes2 relationship (Informational)

  Distinct conditions — both may be reported.

  A distinct condition — both may be reported when both are documented.

  What moves you there: Documentation of problems related to socioeconomic and psychosocial circumstances adds Z55; it is not part of this code and both may be reported when both are documented.

  Full comparison: Z73.1 vs Z55 →

• Z65— Excludes2 relationship (Informational)

  Distinct conditions — both may be reported.

  A distinct condition — both may be reported when both are documented.

  What moves you there: Documentation of problems related to socioeconomic and psychosocial circumstances adds Z65; it is not part of this code and both may be reported when both are documented.

  Full comparison: Z73.1 vs Z65 →

Relationships are read from this code's own official notes, its laterality siblings and its encounter family; the wording of each distinction is MedCoder editorial, and the documentation named in each “what moves you there” line is the official note phrase or sibling title itself. Source: CMS ICD-10-CM tabular instructional notes; ICD-10-CM Official Guidelines, Section I.A.12.a.

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.

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

Relationships & Classification

MedCoder structured relationships — computed from published CMS and AHRQ datasets

Other codes that name Z73.1 or its code family, from the CMS ICD-10-CM tabular instructional notes. Tabular-note edges are stored at the code family level that carries each note.

Referenced by 1 Excludes2 note: Z72 — Problems related to lifestyle (via Z73.-).

These codes’ tabular lists name this diagnosis as distinct — both may be reported when both are documented.

MS-DRG Grouper Relationships (FY2026)

Potential MS-DRG participation — not a DRG assignment.

FY2026 MS-DRG: not on the CMS CC/MCC list — as a secondary diagnosis this code does not change MS-DRG severity for that release.

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.

Clinical classification (AHRQ CCSR):FAC020 — Lifestyle/life management factors (default).

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

Related Codes

Principal diagnosis restriction (Medicare Code Editor)

Not acceptable as a principal diagnosis on an inpatient claim.

Same clinical category (CCSR)

AHRQ's Clinical Classifications Software groups these diagnoses under the same clinical category (Lifestyle/life management factors).

Z72.53 — High risk bisexual behavior, Z72.6 — Gambling and betting, Z72.810 — Child and adolescent antisocial behavior, Z72.811 — Adult antisocial behavior, Z72.820 — Sleep deprivation, Z72.821 — Inadequate sleep hygiene, Z72.823 — Risk of suffocation (smothering) under another while sleeping, Z72.89 — Other problems related to lifestyle, Z72.9 — Problem related to lifestyle, unspecified, Z73.0 — Burn-out, Z73.2 — Lack of relaxation and leisure, Z73.3 — Stress, not elsewhere classified, Z73.4 — Inadequate social skills, not elsewhere classified, Z73.5 — Social role conflict, not elsewhere classified, Z73.6 — Limitation of activities due to disability, Z73.810 — Behavioral insomnia of childhood, sleep-onset association type, Z73.811 — Behavioral insomnia of childhood, limit setting type, Z73.812 — Behavioral insomnia of childhood, combined type, Z73.819 — Behavioral insomnia of childhood, unspecified type, Z73.82 — Dual sensory impairment, +7 more

Same Index main term, other category

The ICD-10-CM Index to Diseases and Injuries files this code under the main terms “Behavior”, “Personality”; these codes share that main term but sit in a different category of the Tabular List.

F60.4 — Histrionic personality disorder (histrionic), F60.5 — Obsessive-compulsive personality disorder (obsessive), F60.6 — Avoidant personality disorder (anxious), F60.7 — Dependent personality disorder (passive), F60.81 — Narcissistic personality disorder (narcissistic), F60.89 — Other specific personality disorders (mixed), F60.9 — Personality disorder, unspecified, R46.2 — Strange and inexplicable behavior (strange), R46.3 — Overactivity (overactivity), R46.4 — Slowness and poor responsiveness (slowness), R46.5 — Suspiciousness and marked evasiveness (suspiciousness), R46.6 — Undue concern and preoccupation with stressful events (undue concern or preoccupation with stressful events), R46.7 — Verbosity and circumstantial detail obscuring reason for contact (verbosity and circumstantial detail obscuring reason for contact), R46.81 — Obsessive-compulsive behavior (obsessive-compulsive), R46.89 — Other symptoms and signs involving appearance and behavior (specified NEC), Z72.810 — Child and adolescent antisocial behavior (antisocial, child or adolescent), Z72.811 — Adult antisocial behavior (antisocial, adult), Z72.821 — Inadequate sleep hygiene (sleep-incompatible), Z72.89 — Other problems related to lifestyle (self-damaging), Z76.5 — Malingerer [conscious simulation] (drug seeking), +11 more

Contextual Map

Every relationship of Z73.1 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.

Run Z73.1 with this related code in Claim Check

Hierarchy

• Z00-Z99 — Chapter 21: Factors Influencing Health Status and Contact with Health Services (Z00-Z99) (Z00-Z99)[Hierarchy]— CMS ICD-10-CM tabular structure · icd10cm-fy2026
• Z69-Z76 — Persons encountering health services in other circumstances[Hierarchy]— CMS ICD-10-CM tabular structure · icd10cm-fy2026

Referenced by Excludes2 notes

• Z72 — Problems related to lifestyle[Excludes2](via Z73.-): “problems related to life-management difficulty (Z73.-)”— CMS ICD-10-CM tabular instructional notes · icd10cm-fy2026

Clinical classification (CCSR)

• FAC020 — Lifestyle/life management factors[CCSR]— AHRQ CCSR for ICD-10-CM Diagnoses (HCUP)

MS-DRG Grouper

• DRG 951 — OTHER FACTORS INFLUENCING HEALTH STATUS[MS-DRG]: “OTHER FACTORS INFLUENCING HEALTH STATUS (MDC 23)”— CMS MS-DRG Definitions Manual (Appendix B) · FY2026

MDC crossing

• 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. 1,235 same-MDC procedures group here; browse them on the MDC page.”— CMS MS-DRG Definitions Manual · FY2026

Index entries

• Accentuation of personality traits (type A)[Index term]— CMS ICD-10-CM Index to Diseases and Injuries · icd10cm-fy2026
• Behavior, type A pattern[Index term]— CMS ICD-10-CM Index to Diseases and Injuries · icd10cm-fy2026
• Personality (disorder), accentuation of traits (type A pattern)[Index term]— CMS ICD-10-CM Index to Diseases and Injuries · icd10cm-fy2026
• Personality (disorder), type A[Index term]— CMS ICD-10-CM Index to Diseases and Injuries · icd10cm-fy2026
• Trait (s), personality, accentuated[Index term]— CMS ICD-10-CM Index to Diseases and Injuries · icd10cm-fy2026
• Trait (s), type A personality[Index term]— CMS ICD-10-CM Index to Diseases and Injuries · icd10cm-fy2026
• Type A behavior pattern[Index term]— CMS ICD-10-CM Index to Diseases and Injuries · icd10cm-fy2026

Nearest codes (16)

• Z73 — Problems related to life management difficulty[Sibling]— CMS ICD-10-CM tabular structure · icd10cm-fy2026
• Z73.0 — Burn-out[Sibling]— CMS ICD-10-CM tabular structure · icd10cm-fy2026
• Z73.2 — Lack of relaxation and leisure[Sibling]— CMS ICD-10-CM tabular structure · icd10cm-fy2026
• Z73.3 — Stress, not elsewhere classified[Sibling]— CMS ICD-10-CM tabular structure · icd10cm-fy2026
• Z73.4 — Inadequate social skills, not elsewhere classified[Sibling]— CMS ICD-10-CM tabular structure · icd10cm-fy2026
• Z73.5 — Social role conflict, not elsewhere classified[Sibling]— CMS ICD-10-CM tabular structure · icd10cm-fy2026
• Z73.6 — Limitation of activities due to disability[Sibling]— CMS ICD-10-CM tabular structure · icd10cm-fy2026
• Z73.8 — Other problems related to life management difficulty[Sibling]— CMS ICD-10-CM tabular structure · icd10cm-fy2026
• and 8 more

Change history

• FY2016 — In the code set at ICD-10-CM adoption [Change history]— CMS release files (code change ledger) · icd10cm-fy2016

Sources for this page

Codes, titles, notes, index terms and mappings on this page are transcribed from the datasets below. Relationships MedCoder computed and text MedCoder wrote are labelled where they appear.

Code, title, tabular notes and index terms Official source data

CMS/CDC ICD-10-CM FY2026 tabular list, index and tables, effective October 1, 2025 Release, file and checksum · Publisher’s page

Coding guidelines Official source data

ICD-10-CM Official Guidelines for Coding and Reporting (FY2026), quoted by section Release, file and checksum · Publisher’s page

Claim edits Official source data

CMS Definitions of Medicare Code Edits — v43.1 (April 2026) Release, file and checksum · Publisher’s page

Inpatient payment groups Official source data

CMS MS-DRG Definitions Manual (incl. Appendix B diagnosis index, Appendix C CC/MCC list, Appendix E procedure index) and IPPS Final Rule tables — v43 Release, file and checksum · Publisher’s page

Change history and date-of-service validity Official source data

CMS ICD-10-CM release addenda, ingested release by release into the change ledger Release, file and checksum · Publisher’s page

Comparisons, relationships and the contextual map MedCoder structured relationship

Computed by MedCoder from the tabular notes and tables above; every derived relationship is marked as derived where it appears

Summary and FAQ answers MedCoder explanation

Written by MedCoder to explain the sources above: drafted with AI assistance, checked by a person against the release files, and labelled as MedCoder text where it appears. Not official text.

Labels on this page: Official source data · MedCoder structured relationship · MedCoder explanation. How to read the labels · All data sources and release dates

Nearest Codes in This Family

Official ICD-10-CM classifications closest to Z73.1 in its code family, with their registry titles.

• Z73 — Problems related to life management difficulty
• Z73.0 — Burn-out
• Z73.2 — Lack of relaxation and leisure
• Z73.3 — Stress, not elsewhere classified
• Z73.4 — Inadequate social skills, not elsewhere classified
• Z73.5 — Social role conflict, not elsewhere classified
• Z73.6 — Limitation of activities due to disability
• Z73.8 — Other problems related to life management difficulty
• Z73.81 — Behavioral insomnia of childhood
• Z73.810 — Behavioral insomnia of childhood, sleep-onset association type

View all codes in the Z73 family