DxCodebookFY2027 · Oct 1, 2026 – Sep 30, 2027

Category · FY2027

Z55 Problems related to education and literacy

  • Header · not billable

Z55 is not billable. The category heads 9 billable codes in FY2027: the 9 codes directly below it.

Index → code

  • Illiteracy → Z55.0
  • Educational handicap → Z55.9
  • Underachievement in school → Z55.3

Where it sits

  1. Chapter 21 Factors influencing health status and contact with health services (Z00-Z99)
  2. Z55-Z65 Persons with potential health hazards related to socioeconomic and psychosocial circumstances (Z55-Z65)
  3. Z55 Problems related to education and literacy
Billable codes
9
Subdivisions
9
CC / MCC codes
0 / 0
HCC V28 codes
0
New FY2027
0
Index entries
38

Codes in Z55

  1. Z55.0
    Illiteracy and low-level literacy
    BillableExempt
  2. Z55.1
    Schooling unavailable and unattainable
    BillableExempt
  3. Z55.2
    Failed school examinations
    BillableExempt
  4. Z55.3
    Underachievement in school
    BillableExempt
  5. Z55.4
    Educational maladjustment and discord with teachers and classmates
    BillableExempt
  6. Z55.5
    Less than a high school diploma
    BillableExempt
    Inclusion terms 1

    Inclusion terms

    • No general equivalence degree (GED)
  7. Z55.6
    Problems related to health literacy
    BillableExempt
    Inclusion terms 3

    Inclusion terms

    • Difficulty understanding health related information
    • Difficulty understanding medication instructions
    • Problem completing medical forms
  8. Z55.8
    Other problems related to education and literacy
    BillableExempt
    Inclusion terms 1

    Inclusion terms

    • Problems related to inadequate teaching
  9. Z55.9
    Problems related to education and literacy, unspecified
    BillableExempt
    Inclusion terms 1

    Inclusion terms

    • Academic problems NOS

Sources of each column.

Instructions

At Z55

Excludes1

  • disorders of psychological development (F80-F89) F80 F89

Notes that also apply

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

Index entries

  • Illiteracy → Z55.0
  • Underachievement in school → Z55.3
  • Less than a high school diploma → Z55.5
  • Educational handicap → Z55.9
  • Lowlevel of literacy → Z55.0
  • Problem (with) (related to)illiteracy → Z55.0
  • Unavailability (of)schooling → Z55.1
  • Failure, failedexamination(s), anxiety concerning → Z55.2
  • Problem (with) (related to)failed examinations (school) → Z55.2
  • Lack ofachievement in school → Z55.3
  • Lowachiever, school → Z55.3
  • Problem (with) (related to)underachievement in school → Z55.3
  • Discord (with)classmates → Z55.4
  • Discord (with)teachers → Z55.4
  • Dissatisfaction withschool environment → Z55.4
  • Maladjustmenteducational → Z55.4
  • Educational handicapless than a high school diploma → Z55.5
  • Educational handicapno general equivalence degree (GED) → Z55.5
  • Nogeneral equivalence degree (GED) → Z55.5
  • Illiteracyhealth → Z55.6
  • Problem (with) (related to)completing medical forms → Z55.6
  • Problem (with) (related to)health literacy → Z55.6
  • Educational handicapspecified NEC → Z55.8
  • Inadequate, inadequacyteaching affecting education → Z55.8
  • Problem (with) (related to)academic → Z55.8
  • Problem (with) (related to)inadequate teaching affecting education → Z55.8
  • Handicap, handicappededucational → Z55.9
  • Problem (with) (related to)education → Z55.9
  • Problem (with) (related to)literacy → Z55.9
  • Problem (with) (related to)literacylow level → Z55.0
  • Problem (with) (related to)conflict or discord (with)classmates → Z55.4
  • Problem (with) (related to)conflict or discord (with)teachers → Z55.4
  • Difficult, difficulty (in)understandinghealth related information → Z55.6
  • Difficult, difficulty (in)understandingmedication instructions → Z55.6
  • Difficult, difficulty (in)spelling (specific)due to inadequate teaching → Z55.8
  • Handicap, handicappededucationalspecified NEC → Z55.8
  • Problem (with) (related to)educationspecified NEC → Z55.8
  • Problem (with) (related to)literacyspecified NEC → Z55.8

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

Hierarchy