2027 ICD-10-CM Diagnosis Code Z91.52Personal history of nonsuicidal self-harm
Z91.52 is a billable ICD-10-CM diagnosis code for personal history of nonsuicidal self-harm. It is valid on HIPAA claims for fiscal year 2027 (October 1, 2026 through September 30, 2027) and groups to MS-DRG 951. The code is not accepted as a principal diagnosis by the Medicare Code Editor and exempt from POA reporting. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Personal history of other disease.
Code Identity
Code Classification
Code EditsBilling
Medicare Code Editor checks that affect claim validity for Z91.52.
Present on Admission (POA)Billing
Z91.52 is exempt from POA reporting on inpatient claims to general acute care hospitals. Review the other POA exempt codes in Persons with potential health hazards related to family and personal history and certain conditions influencing health status (Z77-Z99).
Approximate SynonymsGuidance
Alternate terms and clinical phrases that map to this code.
- Biting own arm
- Biting own fingers
- Biting own hand
- Biting own toes
- Biting own tongue
- Biting self
- Breaking own bones
- Damaging own wounds
- Eating own flesh
- Enucleation of own eyes
- Gouging own body parts
- Gouging own eyes
- Gouging own flesh
- Gouging own rectum
- Gouging own vagina
- Head-hitting
- Hitting self
- Inserting foreign bodies into own orifices
- Inserting objects into wound
- Nipping self
- Picking own skin
- Pinching self
- Poking fingers into wound
- Pulling out sutures
- Pulling own teeth out
- Punching self
- Removing own nails
- Reopening scars
- Rubbing own skin
- Scratches self
- Self-inducing a prolapse
- Self-inflicted skin problems
- Self-mutilation
- Self-mutilation of ears
- Self-mutilation of eyes
- Self-mutilation of genitalia
- Self-mutilation of hands
- Self-mutilation of penis
- Slapping self
- Stripping own skin
Instructional NotesGuidance
Instructions from the official ICD-10-CM Tabular List that apply to Z91.52: its own notes plus those printed at Z91.5, Z91, block Z77-Z99, and Chapter 21. A note printed at a category, block or chapter applies to every code under it.
Applicable To
Conditions this code is used for: synonyms of the title or, for "other specified" codes, the conditions assigned to it. The list is not exhaustive.
- Personal history of nonsuicidal self-injury
- Personal history of self-inflicted injury without suicidal intent
- Personal history of self-mutilation
Excludes2
Not included here: the excluded condition is not part of this code, but a patient may have both, so both codes may be reported.
Code Also
A second code may be needed to fully describe the condition; the note gives no sequencing direction.
- mental health disorder, if known
Notes
General instructions on how these codes are used.
- Z codes represent reasons for encounters. A corresponding procedure code must accompany a Z code if a procedure is performed. Categories Z00-Z99 are provided for occasions when circumstances other than a disease, injury or external cause classifiable to categories A00-Y89 are recorded as 'diagnoses' or 'problems'. This can arise in two main ways:
- (a) When a person who may or may not be sick encounters the health services for some specific purpose, such as to receive limited care or service for a current condition, to donate an organ or tissue, to receive prophylactic vaccination (immunization), or to discuss a problem which is in itself not a disease or injury.
- (b) When some circumstance or problem is present which influences the person's health status but is not in itself a current illness or injury.
Source: CMS ICD-10-CM Tabular List. How to read instructional notes.
Referenced in Other NotesGuidance
Instructional notes printed at other codes that name Z91.52, its category, or a range that includes it.
Index to Diseases and InjuriesGuidance
Alphabetical index entries that point to this code.
personal (of) See Also: History, family (of);
nonsuicidal Z91.52
nonsuicidal Z91.52
self-mutilation Z91.52
Clinical ClassificationClinical
AHRQ’s CCSR groups this code into broader clinical categories.
Code History & ChangesHistory
Replacement Z91.52 replaces the following previously assigned code(s):
- Z91.5 - Personal history of self-harm
Questions About Z91.52Overview
What is the ICD-10 code for personal history of nonsuicidal self-harm?
The ICD-10-CM code for personal history of nonsuicidal self-harm is Z91.52 (sometimes written as Z9152). It is billable on HIPAA-covered claims from October 1, 2026 through September 30, 2027.
Is Z91.52 (Personal history of self-harm) a billable code?
Yes. This is a billable ICD-10-CM code, specific enough to report personal history of nonsuicidal self-harm on HIPAA-covered claims from October 1, 2026 through September 30, 2027.
What MS-DRG does Z91.52 group to?
On inpatient claims, personal history of nonsuicidal self-harm maps to MS-DRG 951 (other Factors Influencing Health Status), which carries a relative weight of 0.5574. Higher weights mean higher Medicare reimbursement.
Can Z91.52 be a principal diagnosis?
No. The Medicare Code Editor rejects this code as a principal diagnosis because personal history of nonsuicidal self-harm describes a circumstance that influences health status rather than a current illness. Report it as a secondary diagnosis.
Is Z91.52 exempt from POA reporting?
Yes. CMS lists this code among those exempt from present on admission reporting, so hospitals do not assign a POA indicator for personal history of nonsuicidal self-harm on inpatient claims. The code appears in the Persons with potential health hazards related to family and personal history and certain conditions influencing health status (Z77-Z99) range of the CMS exempt list.
