Skip to main content
Call AIBook a demo

ICD-10-CM E23.7: Disorder of pituitary gland, unspecified

E23.7 is the billable ICD-10-CM code for disorder of pituitary gland, unspecified, in category E23 (Hypofunction and other disorders of the pituitary gland) of the Disorders of other endocrine glands section. As a principal diagnosis it groups to MS-DRG 643 Endocrine Disorders with MCC, MS-DRG 644 Endocrine Disorders with CC, MS-DRG 645 Endocrine Disorders without CC/MCC (MDC 10 MDC 10: Endocrine, Nutritional and Metabolic Diseases and Disorders). 7 LCD billing and coding articles list it as covered.

Compiled from CMS files by the QuickIntell RCM Editorial Team · Data effective · Method: reference methodology · Report a data correction

Data currency: ICD-10-CM code descriptions: FY2027 (effective October 1, 2026); IPPS Table 5 (MS-DRG weights): v44 FY2027 (final rule + CN3) (effective October 1, 2026); ICD-10-CM to HCC mapping: PY2027 initial ICD-10-CM mappings (dates of service 2026) (payment year 2027); Medicare Coverage Database billing and coding articles: MCD release October 8, 2026 (effective October 4, 2026). Next CMS release: FY2028 code files, effective October 1, 2027 for the ICD-10-CM code descriptions; FY2028 final rule (August 2027), effective October 1, 2027; an April 1 interim grouper update when CMS issues one for the IPPS Table 5 (MS-DRG weights); PY2028 advance notice (February 2027) and the PY2027 midyear final mapping (spring 2027) for the ICD-10-CM to HCC mapping; weekly, every Thursday for the Medicare Coverage Database billing and coding articles.

Code
E23.7
billable FY2027 ICD-10-CM code
Category
E23 Hypofunction and other disorders of the pituitary gland
Chapter
4: Endocrine, nutritional and metabolic diseases (E00-E89)
CC/MCC (MS-DRG v44)
Neither
CMS-HCC V28
Not mapped
POA reporting
Required

Tabular list notes for E23.7

The tabular list has no notes on E23.7 itself; the notes below apply from its parent headings.

Inherited from E23 (Hypofunction and other disorders of the pituitary gland)

Includes
  • the listed conditions whether the disorder is in the pituitary or the hypothalamus
Excludes1 (never coded together)
  • postprocedural hypopituitarism (E89.3)
  • short stature due to endocrine disorder (E34.3-)

MS-DRG grouping when E23.7 is the principal diagnosis

MS-DRG v44 groups for E23.7 as principal diagnosis
MDCMS-DRGs
10 MDC 10: Endocrine, Nutritional and Metabolic Diseases and Disorders643644645

The final group also depends on procedures, secondary diagnoses and discharge status; the MS-DRG lookup for E23.7 shows the full grouping logic.

CC/MCC status and inpatient edits

E23.7 is neither a CC nor an MCC under MS-DRG v44, so as a secondary diagnosis it does not raise the MS-DRG severity level. Check E23.7 against a principal diagnosis.

  • Present on admission: a POA indicator is required on inpatient claims.

CMS-HCC V28 risk adjustment

E23.7 does not map to a payment HCC in the PY2027 CMS-HCC V28 model, so on its own it does not change a Medicare Advantage risk score.

LCD billing and coding articles that list E23.7

7 current Medicare billing and coding articles list E23.7 among the diagnoses that support medical necessity for the services they cover.

For teams evaluating QuickIntell software

Evaluate software for diagnosis coding review

If your team codes diagnoses at volume, review how QuickCode supports qualified coder review of documentation, specificity queries and the billing handoff. Confirm the code sets, settings and reviewer responsibilities during evaluation; a code reference is not a coding determination for a patient.

Evaluate QuickCode for diagnosis codingSee risk adjustment review
Book a software demoAsk about a software workflow

Optional software evaluation, not payer support or help with an individual claim. For coverage or payment decisions, use the official sources on this page. Do not include patient information in a demo booking or inquiry.

Frequently asked questions

What does ICD-10-CM E23.7 mean?

E23.7 means disorder of pituitary gland, unspecified. It is one of 6 billable codes under E23, hypofunction and other disorders of the pituitary gland.

What can't be coded with E23.7?

Excludes1 at E23: postprocedural hypopituitarism (E89.3); short stature due to endocrine disorder (E34.3-). These are never reported together with E23.7.

Which MS-DRG does E23.7 group to?

As the principal diagnosis, E23.7 groups to MS-DRG 643 Endocrine Disorders with MCC, MS-DRG 644 Endocrine Disorders with CC, MS-DRG 645 Endocrine Disorders without CC/MCC (MDC 10 MDC 10: Endocrine, Nutritional and Metabolic Diseases and Disorders) under MS-DRG v44, before procedures and secondary diagnoses are applied.

Sources

Every figure on this page is taken from the CMS publications below, as released by the Centers for Medicare & Medicaid Services. Projection built 2026-10-10. Verify against the primary file before billing or contracting decisions. The reference methodology explains how each figure is computed from these files.

Disclaimer

The descriptor and notes are reproduced from the FY2027 ICD-10-CM files; MS-DRG, CC/MCC and HCC facts come from the CMS FY2027 and PY2027 tables. Code from the medical record and the ICD-10-CM Official Guidelines. Not legal, clinical or billing advice.

Found a figure that does not match the CMS file? Report a data correction with the CMS file and the value you expected; the request reaches the editorial team through the contact form.