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P07.00 ICD-10-CM Code: Extremely low birth weight newborn, unspecified weight

Compare with another codeCheck this code on a claim

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

Coding at a Glance

Tabular directives
1 inclusion term · 1 Excludes1

Billable · FY2027A valid, specific ICD-10-CM code, reportable for dates of service in FY2027.

What you need to know

Source: CMS/NCHS Official ICD-10-CM tabular notes, quoted. From the CMS/NCHS tabular list for the release in force. A note the category or block publishes applies to this code too; the Instructions section marks which is which.

Excludes1Never report with this code
  • low birth weight due to slow fetal growth and fetal malnutrition (P05.-)
IncludesWhat this code covers
  • the listed conditions, without further specification, as the cause of morbidity or additional care, in newborn

Most relevant related codes MedCoder-derived

Read off the official notes above and this code’s own position in the tabular list. Which to report is a documentation question; Compare shows the two side by side.

CompareCheck ClaimView Related Codes

Inpatient Payment Groups (MS-DRG)

Potential MS-DRG participation — not a DRG assignment.

MS-DRGs this diagnosis helps define, as principal or secondary, per the CMS ICD-10-CM/PCS MS-DRG Definitions Manual v44, Appendix B.

  • MS-DRG 790 — EXTREME IMMATURITY OR RESPIRATORY DISTRESS SYNDROME, NEONATE (MDC 15)

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.

Coding instructions

Official Tabular Instructional Notes: the inclusion, exclusion and sequencing notes published for P07.00 in the official ICD-10-CM tabular list, quoted as published.

Source: CMS/CDC — ICD-10-CM Tabular ListRelease: FY2027Effective: October 1, 2026

Trace:FY2027 changesChange historyRelease, file and checksum

Notes without a marker are published on P07.00 itself; “inherited from” names the category or block whose note applies here.

Includes

Conditions the official ICD-10-CM tabular list includes under this code.

  • the listed conditions, without further specification, as the cause of morbidity or additional care, in newborn

Source: inherited from P07

Excludes1 — Not Coded Here

Conditions generally not reported together with this code (Excludes1) -- an error unless the two conditions are documented as unrelated to each other (ICD-10-CM Official Guidelines, Section I.A.12.a).

Source: inherited from P07.0

Coder workflow for P07.00

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

Before you code P07.00

  1. Unspecified does not mean incorrect. When the record gives no greater specificity, P07.00 may be the appropriate code. Check the record for detail that supports a more specific sibling. An unspecified code is for records that do not provide the detail a more specific code needs; a query, not an assumption, is the route to specificity (Guidelines I.A.9.b, I.B.18).

    ReviewP07.01, P07.02, P07.03

    See the relationships section · Guide: Other vs unspecified (NEC vs NOS) →

  2. Check the Excludes1 note: if the documentation supports a condition named there, do not simply proceed with P07.00. Excludes1 conditions are not reported together with this code unless the record shows they are unrelated (Guidelines I.A.12.a).

    See the official tabular notes

Choose the right path

  1. Does the record document the detail a more specific sibling code needs?
    Yes → Review the specific siblings in this subcategory.
    No → Continue — P07.00 is appropriate when the documentation goes no further.

    ReviewP07.01, P07.02, P07.03

  2. Does the documentation support a condition named in P07.00’s Excludes1 note?
    Yes → Do not simply proceed: review the excluded code. Both are reported only when the record shows the two conditions are unrelated.
    No → Continue.

    ReviewP05

Consider P07.00. Then confirm the code is valid for the date of service in the Verify section.

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).
Any detail beyond this code’s title
What the record states that a more specific sibling code would capture — or its absence, which itself supports the unspecified code.

Official instructions as workflow

  • Excludes1 — check before selecting P07.00(1 note)

    Coding workflow: If the documentation supports a condition named in this note, do not simply proceed with P07.00: the two are not reported together. The one exception is when the record shows the two conditions are unrelated to each other.

    CompareP05

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

Coding decision scenarios

Pattern scenarios for this code’s structure — decision rules, not clinical cases

Documentation: The provider documents the condition in the terms of this code’s title and records no further detail.

Coding question: Is a more specific sibling code supportable?

Path: Review the specific siblings in this subcategory and what each requires the record to state.

Reason: A more specific code needs documentation of the distinguishing element; without it the unspecified code is appropriate, and a provider query is the route to specificity (Guidelines I.A.9.b, I.B.18).

ReviewP07.01, P07.02, P07.03

Documentation: Both the condition P07.00 describes and a condition named in its Excludes1 note are documented for the same encounter.

Coding question: Can both codes be reported?

Path: Review the Excludes1 note and the excluded code, and look for a provider statement on whether the two conditions are related.

Reason: Excludes1 means the two are not coded together; the exception is when the record shows the conditions are unrelated to each other (Guidelines I.A.12.a).

ReviewP05

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.

Don’t confuse P07.00 with…

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

The codes most likely to be picked instead of P07.00 — 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.

  • P05— Excludes1 conflict (Excludes1 — generally not reported together)

    Not coded here — the tabular list excludes this pair for the same encounter.

    Not reported together with this code, except where the two conditions are documented as unrelated.

    What moves you there: Documentation of low birth weight due to slow fetal growth and fetal malnutrition moves the case to P05; the two are not reported together unless documented as unrelated.

    Full comparison: P07.00 vs P05 →

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.

Coding context

Guidelines, coding notes, decision aids, relationships (with MS-DRG and CCSR classification), hierarchy, HCC, coverage and the context map: what a coder reaches for after the core. Each section names whether it is official source data, a MedCoder-derived relationship or MedCoder editorial.

Code Overview

Extremely low birth weight newborn, unspecified weight is a billable ICD-10-CM diagnosis code (P07.00).

MedCoder summary Summary composed by MedCoder from this code's official ICD-10-CM record. The tabular instructional notes themselves appear verbatim below.

Official Coding 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.

Chapter 16: Certain Conditions Originating in the Perinatal Period (P00-P96)

d. Prematurity and Fetal Growth Retardation Providers utilize different criteria in determining prematurity. A code for prematurity should not be assigned unless it is documented. Assignment of codes in categories P05, Disorders of newborn related to slow fetal growth and fetal malnutrition, and P07, Disorders of newborn related to short gestation and low birth weight, not elsewhere classified, should be based on the recorded birth weight and estimated gestational age.

Chapter 16: Certain Conditions Originating in the Perinatal Period (P00-P96)

When both birth weight and gestational age are available, two codes from category P07 should be assigned, with the code for birth weight sequenced before the code for gestational age.

Chapter 16: Certain Conditions Originating in the Perinatal Period (P00-P96)

e. Low birth weight and immaturity status Codes from category P07, Disorders of newborn related to short gestation and low birth weight, not elsewhere classified, are for use for a child or adult who was premature or had a low birth weight as a newborn and this is affecting the patient’s current health status.

Verify Before Coding

  • No Medicare Code Editor or MS-DRG Definitions Manual restrictions apply to this code.

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-derived relationships — computed from published CMS and AHRQ datasets

MS-DRG Grouper Relationships (FY2027)

Potential MS-DRG participation — not a DRG assignment.

FY2027 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 790 (MDC 15).

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

Clinical classification (AHRQ CCSR):PNL002 — Short gestation; low birth weight; and fetal growth retardation (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

Same clinical category (CCSR)

AHRQ's Clinical Classifications Software groups these diagnoses under the same clinical category (Short gestation; low birth weight; and fetal growth retardation).

P05.12 — Newborn small for gestational age, 500-749 grams, P05.13 — Newborn small for gestational age, 750-999 grams, P05.14 — Newborn small for gestational age, 1000-1249 grams, P05.15 — Newborn small for gestational age, 1250-1499 grams, P05.16 — Newborn small for gestational age, 1500-1749 grams, P05.17 — Newborn small for gestational age, 1750-1999 grams, P05.18 — Newborn small for gestational age, 2000-2499 grams, P05.19 — Newborn small for gestational age, other, P05.2 — Newborn affected by fetal (intrauterine) malnutrition not light or small for gestational age, P05.9 — Newborn affected by slow intrauterine growth, unspecified, P07.01 — Extremely low birth weight newborn, less than 500 grams, P07.02 — Extremely low birth weight newborn, 500-749 grams, P07.03 — Extremely low birth weight newborn, 750-999 grams, P07.10 — Other low birth weight newborn, unspecified weight, P07.14 — Other low birth weight newborn, 1000-1249 grams, P07.15 — Other low birth weight newborn, 1250-1499 grams, P07.16 — Other low birth weight newborn, 1500-1749 grams, P07.17 — Other low birth weight newborn, 1750-1999 grams, P07.18 — Other low birth weight newborn, 2000-2499 grams, P07.20 — Extreme immaturity of newborn, unspecified weeks of gestation, +28 more

Same Index main term, other category

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

D64.9 — Anemia, unspecified (hemoglobin), E87.1 — Hypo-osmolality and hyponatremia (salt syndrome), H54.2X — Low vision, both eyes, different category levels (vision), H54.50 — Low vision, one eye, unspecified eye (vision, one eye), H54.511A — Low vision right eye category 1, normal vision left eye (vision, one eye, right, category 1), H54.512A — Low vision right eye category 2, normal vision left eye (vision, one eye, right, category 2), H54.52A1 — Low vision left eye category 1, normal vision right eye (vision, one eye, left, category 1), H54.52A2 — Low vision left eye category 2, normal vision right eye (vision, one eye, left, category 2), M54.50 — Low back pain, unspecified (back syndrome), N28.89 — Other specified disorders of kidney and ureter (lying, kidney), N28.9 — Disorder of kidney and ureter, unspecified (function, kidney), Q17.4 — Misplaced ear (set ears), R03.1 — Nonspecific low blood-pressure reading (blood pressure, reading), R45.81 — Low self-esteem (self esteem), R79.1 — Abnormal coagulation profile (von Willebrand factor), R94.8 — Abnormal results of function studies of other organs and systems (basal metabolic rate), Z55.0 — Illiteracy and low-level literacy (level of literacy), Z55.3 — Underachievement in school (achiever, school), Z59.6 — Low income (income)

Contextual Map

Every relationship of P07.00 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

Clinical classification (CCSR)

MS-DRG Grouper

MDC crossing

Index entries

  • Low, birthweight (2499 grams or less), extreme (999 grams or less)[Index term]— CMS ICD-10-CM Index to Diseases and Injuries · icd10cm-fy2027

Nearest codes (31)

Change history

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

Reference

Index terms and tables, published questions and FAQ, every source behind this page with its release and checksum, the date-of-service check and the complete change history.

Indexed Clinical Terms (1)

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.

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 FY2027 tabular list, index and tables, effective October 1, 2026 Release, file and checksum · Publisher’s page
Coding guidelines Official source data
ICD-10-CM Official Guidelines for Coding and Reporting (FY2027), quoted by section Release, file and checksum · Publisher’s page
Claim edits Official source data
CMS Definitions of Medicare Code Edits — v44.0 (October 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 — v44 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-derived 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 editorial 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.

Current data releases:ICD-10-CM FY2027 · ICD-10-PCS FY2027 · HCPCS October 2026 · MS-DRG v44 · Medicare Code Editor v44.0 · NCCI PTP Q4 2026 · MUE Q4 2026 · NCD code lists 2026-01 · LCD export September 20, 2026 · All releases and sources

Labels on this page: Official source data · MedCoder-derived relationship · MedCoder editorial explanation. How to read the labels · All data sources and release dates · CMS coding rules

Cite this page

Reference this page in a research guide, syllabus or article. The release is included because code content changes each year.

MedCoder.ai. "P07.00 — Extremely low birth weight newborn, unspecified weight." ICD-10-CM FY2027. https://medcoder.ai/icd10/code/p07.00-extremely-low-birth-weight-newborn-unspecified-weight

Change history

  • FY2016 — October 1, 2015
    In the code set at ICD-10-CM adoption
    Extremely low birth weight newborn, unspecified weight

No changes since FY2016 — additions, deletions, description changes and billable-status changes are tracked through FY2027, and none are recorded for this code. Note changes are tracked from FY2027 only.

Nearest Codes in This Family

Official ICD-10-CM classifications closest to P07.00 in its code family, with their registry titles.

View all codes in the P07 family